active_thread.rs

   1use crate::context::{AgentContextHandle, RULES_ICON};
   2use crate::context_picker::{ContextPicker, MentionLink};
   3use crate::context_store::ContextStore;
   4use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   5use crate::message_editor::{extract_message_creases, insert_message_creases};
   6use crate::thread::{
   7    LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, Thread, ThreadError,
   8    ThreadEvent, ThreadFeedback, ThreadSummary,
   9};
  10use crate::thread_store::{RulesLoadingError, TextThreadStore, ThreadStore};
  11use crate::tool_use::{PendingToolUseStatus, ToolUse};
  12use crate::ui::{
  13    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  14};
  15use crate::{AgentPanel, ModelUsageContext};
  16use agent_settings::{AgentSettings, NotifyWhenAgentWaiting};
  17use anyhow::Context as _;
  18use assistant_tool::ToolUseStatus;
  19use audio::{Audio, Sound};
  20use collections::{HashMap, HashSet};
  21use editor::actions::{MoveUp, Paste};
  22use editor::scroll::Autoscroll;
  23use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  24use gpui::{
  25    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  26    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  27    ListAlignment, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  28    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  29    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  30    pulsating_between,
  31};
  32use language::{Buffer, Language, LanguageRegistry};
  33use language_model::{
  34    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  35};
  36use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  37use markdown::{
  38    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  39};
  40use project::{ProjectEntryId, ProjectItem as _};
  41use rope::Point;
  42use settings::{Settings as _, SettingsStore, update_settings_file};
  43use std::ffi::OsStr;
  44use std::path::Path;
  45use std::rc::Rc;
  46use std::sync::Arc;
  47use std::time::Duration;
  48use text::ToPoint;
  49use theme::ThemeSettings;
  50use ui::{
  51    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  52    Tooltip, prelude::*,
  53};
  54use util::ResultExt as _;
  55use util::markdown::MarkdownCodeBlock;
  56use workspace::{CollaboratorId, Workspace};
  57use zed_actions::assistant::OpenRulesLibrary;
  58use zed_llm_client::CompletionIntent;
  59
  60pub struct ActiveThread {
  61    context_store: Entity<ContextStore>,
  62    language_registry: Arc<LanguageRegistry>,
  63    thread_store: Entity<ThreadStore>,
  64    text_thread_store: Entity<TextThreadStore>,
  65    thread: Entity<Thread>,
  66    workspace: WeakEntity<Workspace>,
  67    save_thread_task: Option<Task<()>>,
  68    messages: Vec<MessageId>,
  69    list_state: ListState,
  70    scrollbar_state: ScrollbarState,
  71    show_scrollbar: bool,
  72    hide_scrollbar_task: Option<Task<()>>,
  73    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  74    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  75    editing_message: Option<(MessageId, EditingMessageState)>,
  76    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  77    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  78    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  79    last_error: Option<ThreadError>,
  80    notifications: Vec<WindowHandle<AgentNotification>>,
  81    copied_code_block_ids: HashSet<(MessageId, usize)>,
  82    _subscriptions: Vec<Subscription>,
  83    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  84    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  85    _load_edited_message_context_task: Option<Task<()>>,
  86}
  87
  88struct RenderedMessage {
  89    language_registry: Arc<LanguageRegistry>,
  90    segments: Vec<RenderedMessageSegment>,
  91}
  92
  93#[derive(Clone)]
  94struct RenderedToolUse {
  95    label: Entity<Markdown>,
  96    input: Entity<Markdown>,
  97    output: Entity<Markdown>,
  98}
  99
 100impl RenderedMessage {
 101    fn from_segments(
 102        segments: &[MessageSegment],
 103        language_registry: Arc<LanguageRegistry>,
 104        cx: &mut App,
 105    ) -> Self {
 106        let mut this = Self {
 107            language_registry,
 108            segments: Vec::with_capacity(segments.len()),
 109        };
 110        for segment in segments {
 111            this.push_segment(segment, cx);
 112        }
 113        this
 114    }
 115
 116    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 117        if let Some(RenderedMessageSegment::Thinking {
 118            content,
 119            scroll_handle,
 120        }) = self.segments.last_mut()
 121        {
 122            content.update(cx, |markdown, cx| {
 123                markdown.append(text, cx);
 124            });
 125            scroll_handle.scroll_to_bottom();
 126        } else {
 127            self.segments.push(RenderedMessageSegment::Thinking {
 128                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 129                scroll_handle: ScrollHandle::default(),
 130            });
 131        }
 132    }
 133
 134    fn append_text(&mut self, text: &String, cx: &mut App) {
 135        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 136            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 137        } else {
 138            self.segments
 139                .push(RenderedMessageSegment::Text(parse_markdown(
 140                    SharedString::from(text),
 141                    self.language_registry.clone(),
 142                    cx,
 143                )));
 144        }
 145    }
 146
 147    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 148        match segment {
 149            MessageSegment::Thinking { text, .. } => {
 150                self.segments.push(RenderedMessageSegment::Thinking {
 151                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 152                    scroll_handle: ScrollHandle::default(),
 153                })
 154            }
 155            MessageSegment::Text(text) => {
 156                self.segments
 157                    .push(RenderedMessageSegment::Text(parse_markdown(
 158                        text.into(),
 159                        self.language_registry.clone(),
 160                        cx,
 161                    )))
 162            }
 163            MessageSegment::RedactedThinking(_) => {}
 164        };
 165    }
 166}
 167
 168enum RenderedMessageSegment {
 169    Thinking {
 170        content: Entity<Markdown>,
 171        scroll_handle: ScrollHandle,
 172    },
 173    Text(Entity<Markdown>),
 174}
 175
 176fn parse_markdown(
 177    text: SharedString,
 178    language_registry: Arc<LanguageRegistry>,
 179    cx: &mut App,
 180) -> Entity<Markdown> {
 181    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 182}
 183
 184pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 185    let theme_settings = ThemeSettings::get_global(cx);
 186    let colors = cx.theme().colors();
 187    let ui_font_size = TextSize::Default.rems(cx);
 188    let buffer_font_size = TextSize::Small.rems(cx);
 189    let mut text_style = window.text_style();
 190    let line_height = buffer_font_size * 1.75;
 191
 192    text_style.refine(&TextStyleRefinement {
 193        font_family: Some(theme_settings.ui_font.family.clone()),
 194        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 195        font_features: Some(theme_settings.ui_font.features.clone()),
 196        font_size: Some(ui_font_size.into()),
 197        line_height: Some(line_height.into()),
 198        color: Some(cx.theme().colors().text),
 199        ..Default::default()
 200    });
 201
 202    MarkdownStyle {
 203        base_text_style: text_style.clone(),
 204        syntax: cx.theme().syntax().clone(),
 205        selection_background_color: cx.theme().players().local().selection,
 206        code_block_overflow_x_scroll: true,
 207        table_overflow_x_scroll: true,
 208        heading_level_styles: Some(HeadingLevelStyles {
 209            h1: Some(TextStyleRefinement {
 210                font_size: Some(rems(1.15).into()),
 211                ..Default::default()
 212            }),
 213            h2: Some(TextStyleRefinement {
 214                font_size: Some(rems(1.1).into()),
 215                ..Default::default()
 216            }),
 217            h3: Some(TextStyleRefinement {
 218                font_size: Some(rems(1.05).into()),
 219                ..Default::default()
 220            }),
 221            h4: Some(TextStyleRefinement {
 222                font_size: Some(rems(1.).into()),
 223                ..Default::default()
 224            }),
 225            h5: Some(TextStyleRefinement {
 226                font_size: Some(rems(0.95).into()),
 227                ..Default::default()
 228            }),
 229            h6: Some(TextStyleRefinement {
 230                font_size: Some(rems(0.875).into()),
 231                ..Default::default()
 232            }),
 233        }),
 234        code_block: StyleRefinement {
 235            padding: EdgesRefinement {
 236                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 237                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 239                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 240            },
 241            background: Some(colors.editor_background.into()),
 242            text: Some(TextStyleRefinement {
 243                font_family: Some(theme_settings.buffer_font.family.clone()),
 244                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 245                font_features: Some(theme_settings.buffer_font.features.clone()),
 246                font_size: Some(buffer_font_size.into()),
 247                ..Default::default()
 248            }),
 249            ..Default::default()
 250        },
 251        inline_code: TextStyleRefinement {
 252            font_family: Some(theme_settings.buffer_font.family.clone()),
 253            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 254            font_features: Some(theme_settings.buffer_font.features.clone()),
 255            font_size: Some(buffer_font_size.into()),
 256            background_color: Some(colors.editor_foreground.opacity(0.08)),
 257            ..Default::default()
 258        },
 259        link: TextStyleRefinement {
 260            background_color: Some(colors.editor_foreground.opacity(0.025)),
 261            underline: Some(UnderlineStyle {
 262                color: Some(colors.text_accent.opacity(0.5)),
 263                thickness: px(1.),
 264                ..Default::default()
 265            }),
 266            ..Default::default()
 267        },
 268        link_callback: Some(Rc::new(move |url, cx| {
 269            if MentionLink::is_valid(url) {
 270                let colors = cx.theme().colors();
 271                Some(TextStyleRefinement {
 272                    background_color: Some(colors.element_background),
 273                    ..Default::default()
 274                })
 275            } else {
 276                None
 277            }
 278        })),
 279        ..Default::default()
 280    }
 281}
 282
 283fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 284    let theme_settings = ThemeSettings::get_global(cx);
 285    let colors = cx.theme().colors();
 286    let ui_font_size = TextSize::Default.rems(cx);
 287    let buffer_font_size = TextSize::Small.rems(cx);
 288    let mut text_style = window.text_style();
 289
 290    text_style.refine(&TextStyleRefinement {
 291        font_family: Some(theme_settings.ui_font.family.clone()),
 292        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 293        font_features: Some(theme_settings.ui_font.features.clone()),
 294        font_size: Some(ui_font_size.into()),
 295        color: Some(cx.theme().colors().text),
 296        ..Default::default()
 297    });
 298
 299    MarkdownStyle {
 300        base_text_style: text_style,
 301        syntax: cx.theme().syntax().clone(),
 302        selection_background_color: cx.theme().players().local().selection,
 303        code_block_overflow_x_scroll: true,
 304        code_block: StyleRefinement {
 305            margin: EdgesRefinement::default(),
 306            padding: EdgesRefinement::default(),
 307            background: Some(colors.editor_background.into()),
 308            border_color: None,
 309            border_widths: EdgesRefinement::default(),
 310            text: Some(TextStyleRefinement {
 311                font_family: Some(theme_settings.buffer_font.family.clone()),
 312                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 313                font_features: Some(theme_settings.buffer_font.features.clone()),
 314                font_size: Some(buffer_font_size.into()),
 315                ..Default::default()
 316            }),
 317            ..Default::default()
 318        },
 319        inline_code: TextStyleRefinement {
 320            font_family: Some(theme_settings.buffer_font.family.clone()),
 321            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 322            font_features: Some(theme_settings.buffer_font.features.clone()),
 323            font_size: Some(TextSize::XSmall.rems(cx).into()),
 324            ..Default::default()
 325        },
 326        heading: StyleRefinement {
 327            text: Some(TextStyleRefinement {
 328                font_size: Some(ui_font_size.into()),
 329                ..Default::default()
 330            }),
 331            ..Default::default()
 332        },
 333        ..Default::default()
 334    }
 335}
 336
 337const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
 338
 339fn render_markdown_code_block(
 340    message_id: MessageId,
 341    ix: usize,
 342    kind: &CodeBlockKind,
 343    parsed_markdown: &ParsedMarkdown,
 344    metadata: CodeBlockMetadata,
 345    active_thread: Entity<ActiveThread>,
 346    workspace: WeakEntity<Workspace>,
 347    _window: &Window,
 348    cx: &App,
 349) -> Div {
 350    let label_size = rems(0.8125);
 351
 352    let label = match kind {
 353        CodeBlockKind::Indented => None,
 354        CodeBlockKind::Fenced => Some(
 355            h_flex()
 356                .px_1()
 357                .gap_1()
 358                .child(
 359                    Icon::new(IconName::Code)
 360                        .color(Color::Muted)
 361                        .size(IconSize::XSmall),
 362                )
 363                .child(div().text_size(label_size).child("Plain Text"))
 364                .into_any_element(),
 365        ),
 366        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 367            parsed_markdown.languages_by_name.get(raw_language_name),
 368            raw_language_name.clone(),
 369            cx,
 370        )),
 371        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 372            // We tell the model to use /dev/null for the path instead of using ```language
 373            // because otherwise it consistently fails to use code citations.
 374            if path_range.path.starts_with("/dev/null") {
 375                let ext = path_range
 376                    .path
 377                    .extension()
 378                    .and_then(OsStr::to_str)
 379                    .map(|str| SharedString::new(str.to_string()))
 380                    .unwrap_or_default();
 381
 382                render_code_language(
 383                    parsed_markdown
 384                        .languages_by_path
 385                        .get(&path_range.path)
 386                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 387                    ext,
 388                    cx,
 389                )
 390            } else {
 391                let content = if let Some(parent) = path_range.path.parent() {
 392                    let file_name = file_name.to_string_lossy().to_string();
 393                    let path = parent.to_string_lossy().to_string();
 394                    let path_and_file = format!("{}/{}", path, file_name);
 395
 396                    h_flex()
 397                        .id(("code-block-header-label", ix))
 398                        .ml_1()
 399                        .gap_1()
 400                        .child(div().text_size(label_size).child(file_name))
 401                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 402                        .tooltip(move |window, cx| {
 403                            Tooltip::with_meta(
 404                                "Jump to File",
 405                                None,
 406                                path_and_file.clone(),
 407                                window,
 408                                cx,
 409                            )
 410                        })
 411                        .into_any_element()
 412                } else {
 413                    div()
 414                        .ml_1()
 415                        .text_size(label_size)
 416                        .child(path_range.path.to_string_lossy().to_string())
 417                        .into_any_element()
 418                };
 419
 420                h_flex()
 421                    .id(("code-block-header-button", ix))
 422                    .w_full()
 423                    .max_w_full()
 424                    .px_1()
 425                    .gap_0p5()
 426                    .cursor_pointer()
 427                    .rounded_sm()
 428                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 429                    .child(
 430                        h_flex()
 431                            .gap_0p5()
 432                            .children(
 433                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 434                                    .map(Icon::from_path)
 435                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 436                            )
 437                            .child(content)
 438                            .child(
 439                                Icon::new(IconName::ArrowUpRight)
 440                                    .size(IconSize::XSmall)
 441                                    .color(Color::Ignored),
 442                            ),
 443                    )
 444                    .on_click({
 445                        let path_range = path_range.clone();
 446                        move |_, window, cx| {
 447                            workspace
 448                                .update(cx, |workspace, cx| {
 449                                    open_path(&path_range, window, workspace, cx)
 450                                })
 451                                .ok();
 452                        }
 453                    })
 454                    .into_any_element()
 455            }
 456        }),
 457    };
 458
 459    let codeblock_was_copied = active_thread
 460        .read(cx)
 461        .copied_code_block_ids
 462        .contains(&(message_id, ix));
 463
 464    let is_expanded = active_thread.read(cx).is_codeblock_expanded(message_id, ix);
 465
 466    let codeblock_header_bg = cx
 467        .theme()
 468        .colors()
 469        .element_background
 470        .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 471
 472    let control_buttons = h_flex()
 473        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 474        .absolute()
 475        .top_0()
 476        .right_0()
 477        .h_full()
 478        .bg(codeblock_header_bg)
 479        .rounded_tr_md()
 480        .px_1()
 481        .gap_1()
 482        .child(
 483            IconButton::new(
 484                ("copy-markdown-code", ix),
 485                if codeblock_was_copied {
 486                    IconName::Check
 487                } else {
 488                    IconName::Copy
 489                },
 490            )
 491            .icon_color(Color::Muted)
 492            .shape(ui::IconButtonShape::Square)
 493            .tooltip(Tooltip::text("Copy Code"))
 494            .on_click({
 495                let active_thread = active_thread.clone();
 496                let parsed_markdown = parsed_markdown.clone();
 497                let code_block_range = metadata.content_range.clone();
 498                move |_event, _window, cx| {
 499                    active_thread.update(cx, |this, cx| {
 500                        this.copied_code_block_ids.insert((message_id, ix));
 501
 502                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 503                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 504
 505                        cx.spawn(async move |this, cx| {
 506                            cx.background_executor().timer(Duration::from_secs(2)).await;
 507
 508                            cx.update(|cx| {
 509                                this.update(cx, |this, cx| {
 510                                    this.copied_code_block_ids.remove(&(message_id, ix));
 511                                    cx.notify();
 512                                })
 513                            })
 514                            .ok();
 515                        })
 516                        .detach();
 517                    });
 518                }
 519            }),
 520        )
 521        .child(
 522            IconButton::new(
 523                ("expand-collapse-code", ix),
 524                if is_expanded {
 525                    IconName::ChevronUp
 526                } else {
 527                    IconName::ChevronDown
 528                },
 529            )
 530            .icon_color(Color::Muted)
 531            .shape(ui::IconButtonShape::Square)
 532            .tooltip(Tooltip::text(if is_expanded {
 533                "Collapse Code"
 534            } else {
 535                "Expand Code"
 536            }))
 537            .on_click({
 538                let active_thread = active_thread.clone();
 539                move |_event, _window, cx| {
 540                    active_thread.update(cx, |this, cx| {
 541                        this.toggle_codeblock_expanded(message_id, ix);
 542                        cx.notify();
 543                    });
 544                }
 545            }),
 546        );
 547
 548    let codeblock_header = h_flex()
 549        .relative()
 550        .p_1()
 551        .gap_1()
 552        .justify_between()
 553        .bg(codeblock_header_bg)
 554        .map(|this| {
 555            if !is_expanded {
 556                this.rounded_md()
 557            } else {
 558                this.rounded_t_md()
 559                    .border_b_1()
 560                    .border_color(cx.theme().colors().border.opacity(0.6))
 561            }
 562        })
 563        .children(label)
 564        .child(control_buttons);
 565
 566    v_flex()
 567        .group(CODEBLOCK_CONTAINER_GROUP)
 568        .my_2()
 569        .overflow_hidden()
 570        .rounded_md()
 571        .border_1()
 572        .border_color(cx.theme().colors().border.opacity(0.6))
 573        .bg(cx.theme().colors().editor_background)
 574        .child(codeblock_header)
 575        .when(!is_expanded, |this| this.h(rems_from_px(31.)))
 576}
 577
 578fn open_path(
 579    path_range: &PathWithRange,
 580    window: &mut Window,
 581    workspace: &mut Workspace,
 582    cx: &mut Context<'_, Workspace>,
 583) {
 584    let Some(project_path) = workspace
 585        .project()
 586        .read(cx)
 587        .find_project_path(&path_range.path, cx)
 588    else {
 589        return; // TODO instead of just bailing out, open that path in a buffer.
 590    };
 591
 592    let Some(target) = path_range.range.as_ref().map(|range| {
 593        Point::new(
 594            // Line number is 1-based
 595            range.start.line.saturating_sub(1),
 596            range.start.col.unwrap_or(0),
 597        )
 598    }) else {
 599        return;
 600    };
 601    let open_task = workspace.open_path(project_path, None, true, window, cx);
 602    window
 603        .spawn(cx, async move |cx| {
 604            let item = open_task.await?;
 605            if let Some(active_editor) = item.downcast::<Editor>() {
 606                active_editor
 607                    .update_in(cx, |editor, window, cx| {
 608                        editor.go_to_singleton_buffer_point(target, window, cx);
 609                    })
 610                    .ok();
 611            }
 612            anyhow::Ok(())
 613        })
 614        .detach_and_log_err(cx);
 615}
 616
 617fn render_code_language(
 618    language: Option<&Arc<Language>>,
 619    name_fallback: SharedString,
 620    cx: &App,
 621) -> AnyElement {
 622    let icon_path = language.and_then(|language| {
 623        language
 624            .config()
 625            .matcher
 626            .path_suffixes
 627            .iter()
 628            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 629            .map(Icon::from_path)
 630    });
 631
 632    let language_label = language
 633        .map(|language| language.name().into())
 634        .unwrap_or(name_fallback);
 635
 636    let label_size = rems(0.8125);
 637
 638    h_flex()
 639        .px_1()
 640        .gap_1p5()
 641        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)))
 642        .child(div().text_size(label_size).child(language_label))
 643        .into_any_element()
 644}
 645
 646fn open_markdown_link(
 647    text: SharedString,
 648    workspace: WeakEntity<Workspace>,
 649    window: &mut Window,
 650    cx: &mut App,
 651) {
 652    let Some(workspace) = workspace.upgrade() else {
 653        cx.open_url(&text);
 654        return;
 655    };
 656
 657    match MentionLink::try_parse(&text, &workspace, cx) {
 658        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 659            if entry.is_dir() {
 660                workspace.project().update(cx, |_, cx| {
 661                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 662                })
 663            } else {
 664                workspace
 665                    .open_path(path, None, true, window, cx)
 666                    .detach_and_log_err(cx);
 667            }
 668        }),
 669        Some(MentionLink::Symbol(path, symbol_name)) => {
 670            let open_task = workspace.update(cx, |workspace, cx| {
 671                workspace.open_path(path, None, true, window, cx)
 672            });
 673            window
 674                .spawn(cx, async move |cx| {
 675                    let active_editor = open_task
 676                        .await?
 677                        .downcast::<Editor>()
 678                        .context("Item is not an editor")?;
 679                    active_editor.update_in(cx, |editor, window, cx| {
 680                        let symbol_range = editor
 681                            .buffer()
 682                            .read(cx)
 683                            .snapshot(cx)
 684                            .outline(None)
 685                            .and_then(|outline| {
 686                                outline
 687                                    .find_most_similar(&symbol_name)
 688                                    .map(|(_, item)| item.range.clone())
 689                            })
 690                            .context("Could not find matching symbol")?;
 691
 692                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 693                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 694                        });
 695                        anyhow::Ok(())
 696                    })
 697                })
 698                .detach_and_log_err(cx);
 699        }
 700        Some(MentionLink::Selection(path, line_range)) => {
 701            let open_task = workspace.update(cx, |workspace, cx| {
 702                workspace.open_path(path, None, true, window, cx)
 703            });
 704            window
 705                .spawn(cx, async move |cx| {
 706                    let active_editor = open_task
 707                        .await?
 708                        .downcast::<Editor>()
 709                        .context("Item is not an editor")?;
 710                    active_editor.update_in(cx, |editor, window, cx| {
 711                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 712                            s.select_ranges([Point::new(line_range.start as u32, 0)
 713                                ..Point::new(line_range.start as u32, 0)])
 714                        });
 715                        anyhow::Ok(())
 716                    })
 717                })
 718                .detach_and_log_err(cx);
 719        }
 720        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 721            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 722                panel.update(cx, |panel, cx| {
 723                    panel
 724                        .open_thread_by_id(&thread_id, window, cx)
 725                        .detach_and_log_err(cx)
 726                });
 727            }
 728        }),
 729        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 730            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 731                panel.update(cx, |panel, cx| {
 732                    panel
 733                        .open_saved_prompt_editor(path, window, cx)
 734                        .detach_and_log_err(cx);
 735                });
 736            }
 737        }),
 738        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 739        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 740            Box::new(OpenRulesLibrary {
 741                prompt_to_select: Some(prompt_id.0),
 742            }),
 743            cx,
 744        ),
 745        None => cx.open_url(&text),
 746    }
 747}
 748
 749struct EditingMessageState {
 750    editor: Entity<Editor>,
 751    context_strip: Entity<ContextStrip>,
 752    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 753    last_estimated_token_count: Option<usize>,
 754    _subscriptions: [Subscription; 2],
 755    _update_token_count_task: Option<Task<()>>,
 756}
 757
 758impl ActiveThread {
 759    pub fn new(
 760        thread: Entity<Thread>,
 761        thread_store: Entity<ThreadStore>,
 762        text_thread_store: Entity<TextThreadStore>,
 763        context_store: Entity<ContextStore>,
 764        language_registry: Arc<LanguageRegistry>,
 765        workspace: WeakEntity<Workspace>,
 766        window: &mut Window,
 767        cx: &mut Context<Self>,
 768    ) -> Self {
 769        let subscriptions = vec![
 770            cx.observe(&thread, |_, _, cx| cx.notify()),
 771            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 772            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 773            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 774        ];
 775
 776        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 777            let this = cx.entity().downgrade();
 778            move |ix, window: &mut Window, cx: &mut App| {
 779                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 780                    .unwrap()
 781            }
 782        });
 783        let mut this = Self {
 784            language_registry,
 785            thread_store,
 786            text_thread_store,
 787            context_store,
 788            thread: thread.clone(),
 789            workspace,
 790            save_thread_task: None,
 791            messages: Vec::new(),
 792            rendered_messages_by_id: HashMap::default(),
 793            rendered_tool_uses: HashMap::default(),
 794            expanded_tool_uses: HashMap::default(),
 795            expanded_thinking_segments: HashMap::default(),
 796            expanded_code_blocks: HashMap::default(),
 797            list_state: list_state.clone(),
 798            scrollbar_state: ScrollbarState::new(list_state),
 799            show_scrollbar: false,
 800            hide_scrollbar_task: None,
 801            editing_message: None,
 802            last_error: None,
 803            copied_code_block_ids: HashSet::default(),
 804            notifications: Vec::new(),
 805            _subscriptions: subscriptions,
 806            notification_subscriptions: HashMap::default(),
 807            open_feedback_editors: HashMap::default(),
 808            _load_edited_message_context_task: None,
 809        };
 810
 811        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 812            this.push_message(&message.id, &message.segments, window, cx);
 813
 814            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 815                this.render_tool_use_markdown(
 816                    tool_use.id.clone(),
 817                    tool_use.ui_text.clone(),
 818                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 819                    tool_use.status.text(),
 820                    cx,
 821                );
 822            }
 823        }
 824
 825        this
 826    }
 827
 828    pub fn thread(&self) -> &Entity<Thread> {
 829        &self.thread
 830    }
 831
 832    pub fn is_empty(&self) -> bool {
 833        self.messages.is_empty()
 834    }
 835
 836    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 837        self.thread.read(cx).summary()
 838    }
 839
 840    pub fn regenerate_summary(&self, cx: &mut App) {
 841        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 842    }
 843
 844    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 845        self.last_error.take();
 846        self.thread.update(cx, |thread, cx| {
 847            thread.cancel_last_completion(Some(window.window_handle()), cx)
 848        })
 849    }
 850
 851    pub fn last_error(&self) -> Option<ThreadError> {
 852        self.last_error.clone()
 853    }
 854
 855    pub fn clear_last_error(&mut self) {
 856        self.last_error.take();
 857    }
 858
 859    /// Returns the editing message id and the estimated token count in the content
 860    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 861        self.editing_message
 862            .as_ref()
 863            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 864    }
 865
 866    pub fn context_store(&self) -> &Entity<ContextStore> {
 867        &self.context_store
 868    }
 869
 870    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 871        &self.thread_store
 872    }
 873
 874    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 875        &self.text_thread_store
 876    }
 877
 878    fn push_message(
 879        &mut self,
 880        id: &MessageId,
 881        segments: &[MessageSegment],
 882        _window: &mut Window,
 883        cx: &mut Context<Self>,
 884    ) {
 885        let old_len = self.messages.len();
 886        self.messages.push(*id);
 887        self.list_state.splice(old_len..old_len, 1);
 888
 889        let rendered_message =
 890            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 891        self.rendered_messages_by_id.insert(*id, rendered_message);
 892    }
 893
 894    fn edited_message(
 895        &mut self,
 896        id: &MessageId,
 897        segments: &[MessageSegment],
 898        _window: &mut Window,
 899        cx: &mut Context<Self>,
 900    ) {
 901        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 902            return;
 903        };
 904        self.list_state.splice(index..index + 1, 1);
 905        let rendered_message =
 906            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 907        self.rendered_messages_by_id.insert(*id, rendered_message);
 908    }
 909
 910    fn deleted_message(&mut self, id: &MessageId) {
 911        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 912            return;
 913        };
 914        self.messages.remove(index);
 915        self.list_state.splice(index..index + 1, 0);
 916        self.rendered_messages_by_id.remove(id);
 917    }
 918
 919    fn render_tool_use_markdown(
 920        &mut self,
 921        tool_use_id: LanguageModelToolUseId,
 922        tool_label: impl Into<SharedString>,
 923        tool_input: &str,
 924        tool_output: SharedString,
 925        cx: &mut Context<Self>,
 926    ) {
 927        let rendered = self
 928            .rendered_tool_uses
 929            .entry(tool_use_id.clone())
 930            .or_insert_with(|| RenderedToolUse {
 931                label: cx.new(|cx| {
 932                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 933                }),
 934                input: cx.new(|cx| {
 935                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 936                }),
 937                output: cx.new(|cx| {
 938                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 939                }),
 940            });
 941
 942        rendered.label.update(cx, |this, cx| {
 943            this.replace(tool_label, cx);
 944        });
 945        rendered.input.update(cx, |this, cx| {
 946            this.replace(
 947                MarkdownCodeBlock {
 948                    tag: "json",
 949                    text: tool_input,
 950                }
 951                .to_string(),
 952                cx,
 953            );
 954        });
 955        rendered.output.update(cx, |this, cx| {
 956            this.replace(tool_output, cx);
 957        });
 958    }
 959
 960    fn handle_thread_event(
 961        &mut self,
 962        _thread: &Entity<Thread>,
 963        event: &ThreadEvent,
 964        window: &mut Window,
 965        cx: &mut Context<Self>,
 966    ) {
 967        match event {
 968            ThreadEvent::CancelEditing => {
 969                if self.editing_message.is_some() {
 970                    self.cancel_editing_message(&menu::Cancel, window, cx);
 971                }
 972            }
 973            ThreadEvent::ShowError(error) => {
 974                self.last_error = Some(error.clone());
 975            }
 976            ThreadEvent::NewRequest => {
 977                cx.notify();
 978            }
 979            ThreadEvent::CompletionCanceled => {
 980                self.thread.update(cx, |thread, cx| {
 981                    thread.project().update(cx, |project, cx| {
 982                        project.set_agent_location(None, cx);
 983                    })
 984                });
 985                self.workspace
 986                    .update(cx, |workspace, cx| {
 987                        if workspace.is_being_followed(CollaboratorId::Agent) {
 988                            workspace.unfollow(CollaboratorId::Agent, window, cx);
 989                        }
 990                    })
 991                    .ok();
 992                cx.notify();
 993            }
 994            ThreadEvent::StreamedCompletion
 995            | ThreadEvent::SummaryGenerated
 996            | ThreadEvent::SummaryChanged => {
 997                self.save_thread(cx);
 998            }
 999            ThreadEvent::Stopped(reason) => match reason {
1000                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
1001                    let used_tools = self.thread.read(cx).used_tools_since_last_user_message();
1002                    self.play_notification_sound(window, cx);
1003                    self.show_notification(
1004                        if used_tools {
1005                            "Finished running tools"
1006                        } else {
1007                            "New message"
1008                        },
1009                        IconName::ZedAssistant,
1010                        window,
1011                        cx,
1012                    );
1013                }
1014                _ => {}
1015            },
1016            ThreadEvent::ToolConfirmationNeeded => {
1017                self.play_notification_sound(window, cx);
1018                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
1019            }
1020            ThreadEvent::ToolUseLimitReached => {
1021                self.play_notification_sound(window, cx);
1022                self.show_notification(
1023                    "Consecutive tool use limit reached.",
1024                    IconName::Warning,
1025                    window,
1026                    cx,
1027                );
1028            }
1029            ThreadEvent::StreamedAssistantText(message_id, text) => {
1030                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1031                    rendered_message.append_text(text, cx);
1032                }
1033            }
1034            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1035                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1036                    rendered_message.append_thinking(text, cx);
1037                }
1038            }
1039            ThreadEvent::MessageAdded(message_id) => {
1040                if let Some(message_segments) = self
1041                    .thread
1042                    .read(cx)
1043                    .message(*message_id)
1044                    .map(|message| message.segments.clone())
1045                {
1046                    self.push_message(message_id, &message_segments, window, cx);
1047                }
1048
1049                self.save_thread(cx);
1050                cx.notify();
1051            }
1052            ThreadEvent::MessageEdited(message_id) => {
1053                if let Some(message_segments) = self
1054                    .thread
1055                    .read(cx)
1056                    .message(*message_id)
1057                    .map(|message| message.segments.clone())
1058                {
1059                    self.edited_message(message_id, &message_segments, window, cx);
1060                }
1061
1062                self.scroll_to_bottom(cx);
1063                self.save_thread(cx);
1064                cx.notify();
1065            }
1066            ThreadEvent::MessageDeleted(message_id) => {
1067                self.deleted_message(message_id);
1068                self.save_thread(cx);
1069                cx.notify();
1070            }
1071            ThreadEvent::UsePendingTools { tool_uses } => {
1072                for tool_use in tool_uses {
1073                    self.render_tool_use_markdown(
1074                        tool_use.id.clone(),
1075                        tool_use.ui_text.clone(),
1076                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1077                        "".into(),
1078                        cx,
1079                    );
1080                }
1081            }
1082            ThreadEvent::StreamedToolUse {
1083                tool_use_id,
1084                ui_text,
1085                input,
1086            } => {
1087                self.render_tool_use_markdown(
1088                    tool_use_id.clone(),
1089                    ui_text.clone(),
1090                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1091                    "".into(),
1092                    cx,
1093                );
1094            }
1095            ThreadEvent::ToolFinished {
1096                pending_tool_use, ..
1097            } => {
1098                if let Some(tool_use) = pending_tool_use {
1099                    self.render_tool_use_markdown(
1100                        tool_use.id.clone(),
1101                        tool_use.ui_text.clone(),
1102                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1103                        self.thread
1104                            .read(cx)
1105                            .output_for_tool(&tool_use.id)
1106                            .map(|output| output.clone().into())
1107                            .unwrap_or("".into()),
1108                        cx,
1109                    );
1110                }
1111            }
1112            ThreadEvent::CheckpointChanged => cx.notify(),
1113            ThreadEvent::ReceivedTextChunk => {}
1114            ThreadEvent::InvalidToolInput {
1115                tool_use_id,
1116                ui_text,
1117                invalid_input_json,
1118            } => {
1119                self.render_tool_use_markdown(
1120                    tool_use_id.clone(),
1121                    ui_text,
1122                    invalid_input_json,
1123                    self.thread
1124                        .read(cx)
1125                        .output_for_tool(tool_use_id)
1126                        .map(|output| output.clone().into())
1127                        .unwrap_or("".into()),
1128                    cx,
1129                );
1130            }
1131            ThreadEvent::MissingToolUse {
1132                tool_use_id,
1133                ui_text,
1134            } => {
1135                self.render_tool_use_markdown(
1136                    tool_use_id.clone(),
1137                    ui_text,
1138                    "",
1139                    self.thread
1140                        .read(cx)
1141                        .output_for_tool(tool_use_id)
1142                        .map(|output| output.clone().into())
1143                        .unwrap_or("".into()),
1144                    cx,
1145                );
1146            }
1147        }
1148    }
1149
1150    fn handle_rules_loading_error(
1151        &mut self,
1152        _thread_store: Entity<ThreadStore>,
1153        error: &RulesLoadingError,
1154        cx: &mut Context<Self>,
1155    ) {
1156        self.last_error = Some(ThreadError::Message {
1157            header: "Error loading rules file".into(),
1158            message: error.message.clone(),
1159        });
1160        cx.notify();
1161    }
1162
1163    fn play_notification_sound(&self, window: &Window, cx: &mut App) {
1164        let settings = AgentSettings::get_global(cx);
1165        if settings.play_sound_when_agent_done && !window.is_window_active() {
1166            Audio::play_sound(Sound::AgentDone, cx);
1167        }
1168    }
1169
1170    fn show_notification(
1171        &mut self,
1172        caption: impl Into<SharedString>,
1173        icon: IconName,
1174        window: &mut Window,
1175        cx: &mut Context<ActiveThread>,
1176    ) {
1177        if window.is_window_active() || !self.notifications.is_empty() {
1178            return;
1179        }
1180
1181        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1182
1183        match AgentSettings::get_global(cx).notify_when_agent_waiting {
1184            NotifyWhenAgentWaiting::PrimaryScreen => {
1185                if let Some(primary) = cx.primary_display() {
1186                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1187                }
1188            }
1189            NotifyWhenAgentWaiting::AllScreens => {
1190                let caption = caption.into();
1191                for screen in cx.displays() {
1192                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1193                }
1194            }
1195            NotifyWhenAgentWaiting::Never => {
1196                // Don't show anything
1197            }
1198        }
1199    }
1200
1201    fn pop_up(
1202        &mut self,
1203        icon: IconName,
1204        caption: SharedString,
1205        title: SharedString,
1206        window: &mut Window,
1207        screen: Rc<dyn PlatformDisplay>,
1208        cx: &mut Context<'_, ActiveThread>,
1209    ) {
1210        let options = AgentNotification::window_options(screen, cx);
1211
1212        let project_name = self.workspace.upgrade().and_then(|workspace| {
1213            workspace
1214                .read(cx)
1215                .project()
1216                .read(cx)
1217                .visible_worktrees(cx)
1218                .next()
1219                .map(|worktree| worktree.read(cx).root_name().to_string())
1220        });
1221
1222        if let Some(screen_window) = cx
1223            .open_window(options, |_, cx| {
1224                cx.new(|_| {
1225                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1226                })
1227            })
1228            .log_err()
1229        {
1230            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1231                self.notification_subscriptions
1232                    .entry(screen_window)
1233                    .or_insert_with(Vec::new)
1234                    .push(cx.subscribe_in(&pop_up, window, {
1235                        |this, _, event, window, cx| match event {
1236                            AgentNotificationEvent::Accepted => {
1237                                let handle = window.window_handle();
1238                                cx.activate(true);
1239
1240                                let workspace_handle = this.workspace.clone();
1241
1242                                // If there are multiple Zed windows, activate the correct one.
1243                                cx.defer(move |cx| {
1244                                    handle
1245                                        .update(cx, |_view, window, _cx| {
1246                                            window.activate_window();
1247
1248                                            if let Some(workspace) = workspace_handle.upgrade() {
1249                                                workspace.update(_cx, |workspace, cx| {
1250                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1251                                                });
1252                                            }
1253                                        })
1254                                        .log_err();
1255                                });
1256
1257                                this.dismiss_notifications(cx);
1258                            }
1259                            AgentNotificationEvent::Dismissed => {
1260                                this.dismiss_notifications(cx);
1261                            }
1262                        }
1263                    }));
1264
1265                self.notifications.push(screen_window);
1266
1267                // If the user manually refocuses the original window, dismiss the popup.
1268                self.notification_subscriptions
1269                    .entry(screen_window)
1270                    .or_insert_with(Vec::new)
1271                    .push({
1272                        let pop_up_weak = pop_up.downgrade();
1273
1274                        cx.observe_window_activation(window, move |_, window, cx| {
1275                            if window.is_window_active() {
1276                                if let Some(pop_up) = pop_up_weak.upgrade() {
1277                                    pop_up.update(cx, |_, cx| {
1278                                        cx.emit(AgentNotificationEvent::Dismissed);
1279                                    });
1280                                }
1281                            }
1282                        })
1283                    });
1284            }
1285        }
1286    }
1287
1288    /// Spawns a task to save the active thread.
1289    ///
1290    /// Only one task to save the thread will be in flight at a time.
1291    fn save_thread(&mut self, cx: &mut Context<Self>) {
1292        let thread = self.thread.clone();
1293        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1294            let task = this
1295                .update(cx, |this, cx| {
1296                    this.thread_store
1297                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1298                })
1299                .ok();
1300
1301            if let Some(task) = task {
1302                task.await.log_err();
1303            }
1304        }));
1305    }
1306
1307    fn start_editing_message(
1308        &mut self,
1309        message_id: MessageId,
1310        message_segments: &[MessageSegment],
1311        message_creases: &[MessageCrease],
1312        window: &mut Window,
1313        cx: &mut Context<Self>,
1314    ) {
1315        // User message should always consist of a single text segment,
1316        // therefore we can skip returning early if it's not a text segment.
1317        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1318            return;
1319        };
1320
1321        let editor = crate::message_editor::create_editor(
1322            self.workspace.clone(),
1323            self.context_store.downgrade(),
1324            self.thread_store.downgrade(),
1325            self.text_thread_store.downgrade(),
1326            window,
1327            cx,
1328        );
1329        editor.update(cx, |editor, cx| {
1330            editor.set_text(message_text.clone(), window, cx);
1331            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1332            editor.focus_handle(cx).focus(window);
1333            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1334        });
1335        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1336            EditorEvent::BufferEdited => {
1337                this.update_editing_message_token_count(true, cx);
1338            }
1339            _ => {}
1340        });
1341
1342        let context_picker_menu_handle = PopoverMenuHandle::default();
1343        let context_strip = cx.new(|cx| {
1344            ContextStrip::new(
1345                self.context_store.clone(),
1346                self.workspace.clone(),
1347                Some(self.thread_store.downgrade()),
1348                Some(self.text_thread_store.downgrade()),
1349                context_picker_menu_handle.clone(),
1350                SuggestContextKind::File,
1351                ModelUsageContext::Thread(self.thread.clone()),
1352                window,
1353                cx,
1354            )
1355        });
1356
1357        let context_strip_subscription =
1358            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1359
1360        self.editing_message = Some((
1361            message_id,
1362            EditingMessageState {
1363                editor: editor.clone(),
1364                context_strip,
1365                context_picker_menu_handle,
1366                last_estimated_token_count: None,
1367                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1368                _update_token_count_task: None,
1369            },
1370        ));
1371        self.update_editing_message_token_count(false, cx);
1372        cx.notify();
1373    }
1374
1375    fn handle_context_strip_event(
1376        &mut self,
1377        _context_strip: &Entity<ContextStrip>,
1378        event: &ContextStripEvent,
1379        window: &mut Window,
1380        cx: &mut Context<Self>,
1381    ) {
1382        if let Some((_, state)) = self.editing_message.as_ref() {
1383            match event {
1384                ContextStripEvent::PickerDismissed
1385                | ContextStripEvent::BlurredEmpty
1386                | ContextStripEvent::BlurredDown => {
1387                    let editor_focus_handle = state.editor.focus_handle(cx);
1388                    window.focus(&editor_focus_handle);
1389                }
1390                ContextStripEvent::BlurredUp => {}
1391            }
1392        }
1393    }
1394
1395    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1396        let Some((message_id, state)) = self.editing_message.as_mut() else {
1397            return;
1398        };
1399
1400        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1401        state._update_token_count_task.take();
1402
1403        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1404            state.last_estimated_token_count.take();
1405            return;
1406        };
1407
1408        let editor = state.editor.clone();
1409        let thread = self.thread.clone();
1410        let message_id = *message_id;
1411
1412        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1413            if debounce {
1414                cx.background_executor()
1415                    .timer(Duration::from_millis(200))
1416                    .await;
1417            }
1418
1419            let token_count = if let Some(task) = cx
1420                .update(|cx| {
1421                    let Some(message) = thread.read(cx).message(message_id) else {
1422                        log::error!("Message that was being edited no longer exists");
1423                        return None;
1424                    };
1425                    let message_text = editor.read(cx).text(cx);
1426
1427                    if message_text.is_empty() && message.loaded_context.is_empty() {
1428                        return None;
1429                    }
1430
1431                    let mut request_message = LanguageModelRequestMessage {
1432                        role: language_model::Role::User,
1433                        content: Vec::new(),
1434                        cache: false,
1435                    };
1436
1437                    message
1438                        .loaded_context
1439                        .add_to_request_message(&mut request_message);
1440
1441                    if !message_text.is_empty() {
1442                        request_message
1443                            .content
1444                            .push(MessageContent::Text(message_text));
1445                    }
1446
1447                    let request = language_model::LanguageModelRequest {
1448                        thread_id: None,
1449                        prompt_id: None,
1450                        intent: None,
1451                        mode: None,
1452                        messages: vec![request_message],
1453                        tools: vec![],
1454                        tool_choice: None,
1455                        stop: vec![],
1456                        temperature: AgentSettings::temperature_for_model(
1457                            &configured_model.model,
1458                            cx,
1459                        ),
1460                    };
1461
1462                    Some(configured_model.model.count_tokens(request, cx))
1463                })
1464                .ok()
1465                .flatten()
1466            {
1467                task.await.log_err()
1468            } else {
1469                Some(0)
1470            };
1471
1472            if let Some(token_count) = token_count {
1473                this.update(cx, |this, cx| {
1474                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1475                        return;
1476                    };
1477
1478                    state.last_estimated_token_count = Some(token_count);
1479                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1480                })
1481                .ok();
1482            };
1483        }));
1484    }
1485
1486    fn toggle_context_picker(
1487        &mut self,
1488        _: &crate::ToggleContextPicker,
1489        window: &mut Window,
1490        cx: &mut Context<Self>,
1491    ) {
1492        if let Some((_, state)) = self.editing_message.as_mut() {
1493            let handle = state.context_picker_menu_handle.clone();
1494            window.defer(cx, move |window, cx| {
1495                handle.toggle(window, cx);
1496            });
1497        }
1498    }
1499
1500    fn remove_all_context(
1501        &mut self,
1502        _: &crate::RemoveAllContext,
1503        _window: &mut Window,
1504        cx: &mut Context<Self>,
1505    ) {
1506        self.context_store.update(cx, |store, cx| store.clear(cx));
1507        cx.notify();
1508    }
1509
1510    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1511        if let Some((_, state)) = self.editing_message.as_mut() {
1512            if state.context_picker_menu_handle.is_deployed() {
1513                cx.propagate();
1514            } else {
1515                state.context_strip.focus_handle(cx).focus(window);
1516            }
1517        }
1518    }
1519
1520    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1521        attach_pasted_images_as_context(&self.context_store, cx);
1522    }
1523
1524    fn cancel_editing_message(
1525        &mut self,
1526        _: &menu::Cancel,
1527        window: &mut Window,
1528        cx: &mut Context<Self>,
1529    ) {
1530        self.editing_message.take();
1531        cx.notify();
1532
1533        if let Some(workspace) = self.workspace.upgrade() {
1534            workspace.update(cx, |workspace, cx| {
1535                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1536                    panel.focus_handle(cx).focus(window);
1537                }
1538            });
1539        }
1540    }
1541
1542    fn confirm_editing_message(
1543        &mut self,
1544        _: &menu::Confirm,
1545        window: &mut Window,
1546        cx: &mut Context<Self>,
1547    ) {
1548        let Some((message_id, state)) = self.editing_message.take() else {
1549            return;
1550        };
1551
1552        let Some(model) = self
1553            .thread
1554            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1555        else {
1556            return;
1557        };
1558
1559        if model.provider.must_accept_terms(cx) {
1560            cx.notify();
1561            return;
1562        }
1563
1564        let edited_text = state.editor.read(cx).text(cx);
1565
1566        let creases = state.editor.update(cx, extract_message_creases);
1567
1568        let new_context = self
1569            .context_store
1570            .read(cx)
1571            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1572
1573        let project = self.thread.read(cx).project().clone();
1574        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1575
1576        let git_store = project.read(cx).git_store().clone();
1577        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1578
1579        let load_context_task =
1580            crate::context::load_context(new_context, &project, &prompt_store, cx);
1581        self._load_edited_message_context_task =
1582            Some(cx.spawn_in(window, async move |this, cx| {
1583                let (context, checkpoint) =
1584                    futures::future::join(load_context_task, checkpoint).await;
1585                let _ = this
1586                    .update_in(cx, |this, window, cx| {
1587                        this.thread.update(cx, |thread, cx| {
1588                            thread.edit_message(
1589                                message_id,
1590                                Role::User,
1591                                vec![MessageSegment::Text(edited_text)],
1592                                creases,
1593                                Some(context.loaded_context),
1594                                checkpoint.ok(),
1595                                cx,
1596                            );
1597                            for message_id in this.messages_after(message_id) {
1598                                thread.delete_message(*message_id, cx);
1599                            }
1600                        });
1601
1602                        this.thread.update(cx, |thread, cx| {
1603                            thread.advance_prompt_id();
1604                            thread.send_to_model(
1605                                model.model,
1606                                CompletionIntent::UserPrompt,
1607                                Some(window.window_handle()),
1608                                cx,
1609                            );
1610                        });
1611                        this._load_edited_message_context_task = None;
1612                        cx.notify();
1613                    })
1614                    .log_err();
1615            }));
1616    }
1617
1618    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1619        self.messages
1620            .iter()
1621            .position(|id| *id == message_id)
1622            .map(|index| &self.messages[index + 1..])
1623            .unwrap_or(&[])
1624    }
1625
1626    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1627        self.cancel_editing_message(&menu::Cancel, window, cx);
1628    }
1629
1630    fn handle_regenerate_click(
1631        &mut self,
1632        _: &ClickEvent,
1633        window: &mut Window,
1634        cx: &mut Context<Self>,
1635    ) {
1636        self.confirm_editing_message(&menu::Confirm, window, cx);
1637    }
1638
1639    fn handle_feedback_click(
1640        &mut self,
1641        message_id: MessageId,
1642        feedback: ThreadFeedback,
1643        window: &mut Window,
1644        cx: &mut Context<Self>,
1645    ) {
1646        let report = self.thread.update(cx, |thread, cx| {
1647            thread.report_message_feedback(message_id, feedback, cx)
1648        });
1649
1650        cx.spawn(async move |this, cx| {
1651            report.await?;
1652            this.update(cx, |_this, cx| cx.notify())
1653        })
1654        .detach_and_log_err(cx);
1655
1656        match feedback {
1657            ThreadFeedback::Positive => {
1658                self.open_feedback_editors.remove(&message_id);
1659            }
1660            ThreadFeedback::Negative => {
1661                self.handle_show_feedback_comments(message_id, window, cx);
1662            }
1663        }
1664    }
1665
1666    fn handle_show_feedback_comments(
1667        &mut self,
1668        message_id: MessageId,
1669        window: &mut Window,
1670        cx: &mut Context<Self>,
1671    ) {
1672        let buffer = cx.new(|cx| {
1673            let empty_string = String::new();
1674            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1675        });
1676
1677        let editor = cx.new(|cx| {
1678            let mut editor = Editor::new(
1679                editor::EditorMode::AutoHeight { max_lines: 4 },
1680                buffer,
1681                None,
1682                window,
1683                cx,
1684            );
1685            editor.set_placeholder_text(
1686                "What went wrong? Share your feedback so we can improve.",
1687                cx,
1688            );
1689            editor
1690        });
1691
1692        editor.read(cx).focus_handle(cx).focus(window);
1693        self.open_feedback_editors.insert(message_id, editor);
1694        cx.notify();
1695    }
1696
1697    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1698        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1699            return;
1700        };
1701
1702        let report_task = self.thread.update(cx, |thread, cx| {
1703            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1704        });
1705
1706        let comments = editor.read(cx).text(cx);
1707        if !comments.is_empty() {
1708            let thread_id = self.thread.read(cx).id().clone();
1709            let comments_value = String::from(comments.as_str());
1710
1711            let message_content = self
1712                .thread
1713                .read(cx)
1714                .message(message_id)
1715                .map(|msg| msg.to_string())
1716                .unwrap_or_default();
1717
1718            telemetry::event!(
1719                "Assistant Thread Feedback Comments",
1720                thread_id,
1721                message_id = message_id.0,
1722                message_content,
1723                comments = comments_value
1724            );
1725
1726            self.open_feedback_editors.remove(&message_id);
1727
1728            cx.spawn(async move |this, cx| {
1729                report_task.await?;
1730                this.update(cx, |_this, cx| cx.notify())
1731            })
1732            .detach_and_log_err(cx);
1733        }
1734    }
1735
1736    fn render_edit_message_editor(
1737        &self,
1738        state: &EditingMessageState,
1739        _window: &mut Window,
1740        cx: &Context<Self>,
1741    ) -> impl IntoElement {
1742        let settings = ThemeSettings::get_global(cx);
1743        let font_size = TextSize::Small
1744            .rems(cx)
1745            .to_pixels(settings.agent_font_size(cx));
1746        let line_height = font_size * 1.75;
1747
1748        let colors = cx.theme().colors();
1749
1750        let text_style = TextStyle {
1751            color: colors.text,
1752            font_family: settings.buffer_font.family.clone(),
1753            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1754            font_features: settings.buffer_font.features.clone(),
1755            font_size: font_size.into(),
1756            line_height: line_height.into(),
1757            ..Default::default()
1758        };
1759
1760        v_flex()
1761            .key_context("EditMessageEditor")
1762            .on_action(cx.listener(Self::toggle_context_picker))
1763            .on_action(cx.listener(Self::remove_all_context))
1764            .on_action(cx.listener(Self::move_up))
1765            .on_action(cx.listener(Self::cancel_editing_message))
1766            .on_action(cx.listener(Self::confirm_editing_message))
1767            .capture_action(cx.listener(Self::paste))
1768            .min_h_6()
1769            .w_full()
1770            .flex_grow()
1771            .gap_2()
1772            .child(state.context_strip.clone())
1773            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1774                &state.editor,
1775                EditorStyle {
1776                    background: colors.editor_background,
1777                    local_player: cx.theme().players().local(),
1778                    text: text_style,
1779                    syntax: cx.theme().syntax().clone(),
1780                    ..Default::default()
1781                },
1782            )))
1783    }
1784
1785    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1786        let message_id = self.messages[ix];
1787        let Some(message) = self.thread.read(cx).message(message_id) else {
1788            return Empty.into_any();
1789        };
1790
1791        if message.is_hidden {
1792            return Empty.into_any();
1793        }
1794
1795        let message_creases = message.creases.clone();
1796
1797        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1798            return Empty.into_any();
1799        };
1800
1801        let workspace = self.workspace.clone();
1802        let thread = self.thread.read(cx);
1803
1804        // Get all the data we need from thread before we start using it in closures
1805        let checkpoint = thread.checkpoint_for_message(message_id);
1806        let configured_model = thread.configured_model().map(|m| m.model);
1807        let added_context = thread
1808            .context_for_message(message_id)
1809            .map(|context| AddedContext::new_attached(context, configured_model.as_ref(), cx))
1810            .collect::<Vec<_>>();
1811
1812        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1813        let has_tool_uses = !tool_uses.is_empty();
1814        let is_generating = thread.is_generating();
1815        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1816
1817        let is_first_message = ix == 0;
1818        let is_last_message = ix == self.messages.len() - 1;
1819
1820        let loading_dots = (is_generating_stale && is_last_message)
1821            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1822
1823        let editing_message_state = self
1824            .editing_message
1825            .as_ref()
1826            .filter(|(id, _)| *id == message_id)
1827            .map(|(_, state)| state);
1828
1829        let colors = cx.theme().colors();
1830        let editor_bg_color = colors.editor_background;
1831        let panel_bg = colors.panel_background;
1832
1833        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1834            .icon_size(IconSize::XSmall)
1835            .icon_color(Color::Ignored)
1836            .tooltip(Tooltip::text("Open Thread as Markdown"))
1837            .on_click({
1838                let thread = self.thread.clone();
1839                let workspace = self.workspace.clone();
1840                move |_, window, cx| {
1841                    if let Some(workspace) = workspace.upgrade() {
1842                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1843                            .detach_and_log_err(cx);
1844                    }
1845                }
1846            });
1847
1848        // For all items that should be aligned with the LLM's response.
1849        const RESPONSE_PADDING_X: Pixels = px(19.);
1850
1851        let show_feedback = thread.is_turn_end(ix);
1852        let feedback_container = h_flex()
1853            .group("feedback_container")
1854            .mt_1()
1855            .py_2()
1856            .px(RESPONSE_PADDING_X)
1857            .mr_1()
1858            .opacity(0.4)
1859            .hover(|style| style.opacity(1.))
1860            .gap_1p5()
1861            .flex_wrap()
1862            .justify_end();
1863        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1864            Some(feedback) => feedback_container
1865                .child(
1866                    div().visible_on_hover("feedback_container").child(
1867                        Label::new(match feedback {
1868                            ThreadFeedback::Positive => "Thanks for your feedback!",
1869                            ThreadFeedback::Negative => {
1870                                "We appreciate your feedback and will use it to improve."
1871                            }
1872                        })
1873                    .color(Color::Muted)
1874                    .size(LabelSize::XSmall)
1875                    .truncate())
1876                )
1877                .child(
1878                    h_flex()
1879                        .child(
1880                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1881                                .icon_size(IconSize::XSmall)
1882                                .icon_color(match feedback {
1883                                    ThreadFeedback::Positive => Color::Accent,
1884                                    ThreadFeedback::Negative => Color::Ignored,
1885                                })
1886                                .tooltip(Tooltip::text("Helpful Response"))
1887                                .on_click(cx.listener(move |this, _, window, cx| {
1888                                    this.handle_feedback_click(
1889                                        message_id,
1890                                        ThreadFeedback::Positive,
1891                                        window,
1892                                        cx,
1893                                    );
1894                                })),
1895                        )
1896                        .child(
1897                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1898                                .icon_size(IconSize::XSmall)
1899                                .icon_color(match feedback {
1900                                    ThreadFeedback::Positive => Color::Ignored,
1901                                    ThreadFeedback::Negative => Color::Accent,
1902                                })
1903                                .tooltip(Tooltip::text("Not Helpful"))
1904                                .on_click(cx.listener(move |this, _, window, cx| {
1905                                    this.handle_feedback_click(
1906                                        message_id,
1907                                        ThreadFeedback::Negative,
1908                                        window,
1909                                        cx,
1910                                    );
1911                                })),
1912                        )
1913                        .child(open_as_markdown),
1914                )
1915                .into_any_element(),
1916            None if AgentSettings::get_global(cx).enable_feedback =>
1917                feedback_container
1918                .child(
1919                    div().visible_on_hover("feedback_container").child(
1920                        Label::new(
1921                            "Rating the thread sends all of your current conversation to the Zed team.",
1922                        )
1923                        .color(Color::Muted)
1924                    .size(LabelSize::XSmall)
1925                    .truncate())
1926                )
1927                .child(
1928                    h_flex()
1929                        .child(
1930                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1931                                .icon_size(IconSize::XSmall)
1932                                .icon_color(Color::Ignored)
1933                                .tooltip(Tooltip::text("Helpful Response"))
1934                                .on_click(cx.listener(move |this, _, window, cx| {
1935                                    this.handle_feedback_click(
1936                                        message_id,
1937                                        ThreadFeedback::Positive,
1938                                        window,
1939                                        cx,
1940                                    );
1941                                })),
1942                        )
1943                        .child(
1944                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1945                                .icon_size(IconSize::XSmall)
1946                                .icon_color(Color::Ignored)
1947                                .tooltip(Tooltip::text("Not Helpful"))
1948                                .on_click(cx.listener(move |this, _, window, cx| {
1949                                    this.handle_feedback_click(
1950                                        message_id,
1951                                        ThreadFeedback::Negative,
1952                                        window,
1953                                        cx,
1954                                    );
1955                                })),
1956                        )
1957                        .child(open_as_markdown),
1958                )
1959                .into_any_element(),
1960            None => feedback_container
1961                .child(h_flex().child(open_as_markdown))
1962                .into_any_element(),
1963        };
1964
1965        let message_is_empty = message.should_display_content();
1966        let has_content = !message_is_empty || !added_context.is_empty();
1967
1968        let message_content = has_content.then(|| {
1969            if let Some(state) = editing_message_state.as_ref() {
1970                self.render_edit_message_editor(state, window, cx)
1971                    .into_any_element()
1972            } else {
1973                v_flex()
1974                    .w_full()
1975                    .gap_1()
1976                    .when(!added_context.is_empty(), |parent| {
1977                        parent.child(h_flex().flex_wrap().gap_1().children(
1978                            added_context.into_iter().map(|added_context| {
1979                                let context = added_context.handle.clone();
1980                                ContextPill::added(added_context, false, false, None).on_click(
1981                                    Rc::new(cx.listener({
1982                                        let workspace = workspace.clone();
1983                                        move |_, _, window, cx| {
1984                                            if let Some(workspace) = workspace.upgrade() {
1985                                                open_context(&context, workspace, window, cx);
1986                                                cx.notify();
1987                                            }
1988                                        }
1989                                    })),
1990                                )
1991                            }),
1992                        ))
1993                    })
1994                    .when(!message_is_empty, |parent| {
1995                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
1996                            message_id,
1997                            rendered_message,
1998                            has_tool_uses,
1999                            workspace.clone(),
2000                            window,
2001                            cx,
2002                        )))
2003                    })
2004                    .into_any_element()
2005            }
2006        });
2007
2008        let styled_message = match message.role {
2009            Role::User => v_flex()
2010                .id(("message-container", ix))
2011                .pt_2()
2012                .pl_2()
2013                .pr_2p5()
2014                .pb_4()
2015                .child(
2016                    v_flex()
2017                        .id(("user-message", ix))
2018                        .bg(editor_bg_color)
2019                        .rounded_lg()
2020                        .shadow_md()
2021                        .border_1()
2022                        .border_color(colors.border)
2023                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2024                        .child(
2025                            v_flex()
2026                                .p_2p5()
2027                                .gap_1()
2028                                .children(message_content)
2029                                .when_some(editing_message_state, |this, state| {
2030                                    let focus_handle = state.editor.focus_handle(cx).clone();
2031
2032                                    this.child(
2033                                        h_flex()
2034                                            .w_full()
2035                                            .gap_1()
2036                                            .justify_between()
2037                                            .flex_wrap()
2038                                            .child(
2039                                                h_flex()
2040                                                    .gap_1p5()
2041                                                    .child(
2042                                                        div()
2043                                                            .opacity(0.8)
2044                                                            .child(
2045                                                                Icon::new(IconName::Warning)
2046                                                                    .size(IconSize::Indicator)
2047                                                                    .color(Color::Warning)
2048                                                            ),
2049                                                    )
2050                                                    .child(
2051                                                        Label::new("Editing will restart the thread from this point.")
2052                                                            .color(Color::Muted)
2053                                                            .size(LabelSize::XSmall),
2054                                                    ),
2055                                            )
2056                                            .child(
2057                                                h_flex()
2058                                                    .gap_0p5()
2059                                                    .child(
2060                                                        IconButton::new(
2061                                                            "cancel-edit-message",
2062                                                            IconName::Close,
2063                                                        )
2064                                                        .shape(ui::IconButtonShape::Square)
2065                                                        .icon_color(Color::Error)
2066                                                        .icon_size(IconSize::Small)
2067                                                        .tooltip({
2068                                                            let focus_handle = focus_handle.clone();
2069                                                            move |window, cx| {
2070                                                                Tooltip::for_action_in(
2071                                                                    "Cancel Edit",
2072                                                                    &menu::Cancel,
2073                                                                    &focus_handle,
2074                                                                    window,
2075                                                                    cx,
2076                                                                )
2077                                                            }
2078                                                        })
2079                                                        .on_click(cx.listener(Self::handle_cancel_click)),
2080                                                    )
2081                                                    .child(
2082                                                        IconButton::new(
2083                                                            "confirm-edit-message",
2084                                                            IconName::Return,
2085                                                        )
2086                                                        .disabled(state.editor.read(cx).is_empty(cx))
2087                                                        .shape(ui::IconButtonShape::Square)
2088                                                        .icon_color(Color::Muted)
2089                                                        .icon_size(IconSize::Small)
2090                                                        .tooltip({
2091                                                            let focus_handle = focus_handle.clone();
2092                                                            move |window, cx| {
2093                                                                Tooltip::for_action_in(
2094                                                                    "Regenerate",
2095                                                                    &menu::Confirm,
2096                                                                    &focus_handle,
2097                                                                    window,
2098                                                                    cx,
2099                                                                )
2100                                                            }
2101                                                        })
2102                                                        .on_click(
2103                                                            cx.listener(Self::handle_regenerate_click),
2104                                                        ),
2105                                                    ),
2106                                            )
2107                                    )
2108                                }),
2109                        )
2110                        .on_click(cx.listener({
2111                            let message_segments = message.segments.clone();
2112                            move |this, _, window, cx| {
2113                                this.start_editing_message(
2114                                    message_id,
2115                                    &message_segments,
2116                                    &message_creases,
2117                                    window,
2118                                    cx,
2119                                );
2120                            }
2121                        })),
2122                ),
2123            Role::Assistant => v_flex()
2124                .id(("message-container", ix))
2125                .px(RESPONSE_PADDING_X)
2126                .gap_2()
2127                .children(message_content)
2128                .when(has_tool_uses, |parent| {
2129                    parent.children(tool_uses.into_iter().map(|tool_use| {
2130                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2131                    }))
2132                }),
2133            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2134                v_flex()
2135                    .bg(colors.editor_background)
2136                    .rounded_sm()
2137                    .child(div().p_4().children(message_content)),
2138            ),
2139        };
2140
2141        let after_editing_message = self
2142            .editing_message
2143            .as_ref()
2144            .map_or(false, |(editing_message_id, _)| {
2145                message_id > *editing_message_id
2146            });
2147
2148        let backdrop = div()
2149            .id(("backdrop", ix))
2150            .size_full()
2151            .absolute()
2152            .inset_0()
2153            .bg(panel_bg)
2154            .opacity(0.8)
2155            .block_mouse_except_scroll()
2156            .on_click(cx.listener(Self::handle_cancel_click));
2157
2158        v_flex()
2159            .w_full()
2160            .map(|parent| {
2161                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2162                    let mut is_pending = false;
2163                    let mut error = None;
2164                    if let Some(last_restore_checkpoint) =
2165                        self.thread.read(cx).last_restore_checkpoint()
2166                    {
2167                        if last_restore_checkpoint.message_id() == message_id {
2168                            match last_restore_checkpoint {
2169                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2170                                LastRestoreCheckpoint::Error { error: err, .. } => {
2171                                    error = Some(err.clone());
2172                                }
2173                            }
2174                        }
2175                    }
2176
2177                    let restore_checkpoint_button =
2178                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2179                            .icon(if error.is_some() {
2180                                IconName::XCircle
2181                            } else {
2182                                IconName::Undo
2183                            })
2184                            .icon_size(IconSize::XSmall)
2185                            .icon_position(IconPosition::Start)
2186                            .icon_color(if error.is_some() {
2187                                Some(Color::Error)
2188                            } else {
2189                                None
2190                            })
2191                            .label_size(LabelSize::XSmall)
2192                            .disabled(is_pending)
2193                            .on_click(cx.listener(move |this, _, _window, cx| {
2194                                this.thread.update(cx, |thread, cx| {
2195                                    thread
2196                                        .restore_checkpoint(checkpoint.clone(), cx)
2197                                        .detach_and_log_err(cx);
2198                                });
2199                            }));
2200
2201                    let restore_checkpoint_button = if is_pending {
2202                        restore_checkpoint_button
2203                            .with_animation(
2204                                ("pulsating-restore-checkpoint-button", ix),
2205                                Animation::new(Duration::from_secs(2))
2206                                    .repeat()
2207                                    .with_easing(pulsating_between(0.6, 1.)),
2208                                |label, delta| label.alpha(delta),
2209                            )
2210                            .into_any_element()
2211                    } else if let Some(error) = error {
2212                        restore_checkpoint_button
2213                            .tooltip(Tooltip::text(error.to_string()))
2214                            .into_any_element()
2215                    } else {
2216                        restore_checkpoint_button.into_any_element()
2217                    };
2218
2219                    parent.child(
2220                        h_flex()
2221                            .pt_2p5()
2222                            .px_2p5()
2223                            .w_full()
2224                            .gap_1()
2225                            .child(ui::Divider::horizontal())
2226                            .child(restore_checkpoint_button)
2227                            .child(ui::Divider::horizontal()),
2228                    )
2229                } else {
2230                    parent
2231                }
2232            })
2233            .when(is_first_message, |parent| {
2234                parent.child(self.render_rules_item(cx))
2235            })
2236            .child(styled_message)
2237            .when(is_generating && is_last_message, |this| {
2238                this.child(
2239                    h_flex()
2240                        .h_8()
2241                        .mt_2()
2242                        .mb_4()
2243                        .ml_4()
2244                        .py_1p5()
2245                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2246                )
2247            })
2248            .when(show_feedback, move |parent| {
2249                parent.child(feedback_items).when_some(
2250                    self.open_feedback_editors.get(&message_id),
2251                    move |parent, feedback_editor| {
2252                        let focus_handle = feedback_editor.focus_handle(cx);
2253                        parent.child(
2254                            v_flex()
2255                                .key_context("AgentFeedbackMessageEditor")
2256                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2257                                    this.open_feedback_editors.remove(&message_id);
2258                                    cx.notify();
2259                                }))
2260                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2261                                    this.submit_feedback_message(message_id, cx);
2262                                    cx.notify();
2263                                }))
2264                                .on_action(cx.listener(Self::confirm_editing_message))
2265                                .mb_2()
2266                                .mx_4()
2267                                .p_2()
2268                                .rounded_md()
2269                                .border_1()
2270                                .border_color(cx.theme().colors().border)
2271                                .bg(cx.theme().colors().editor_background)
2272                                .child(feedback_editor.clone())
2273                                .child(
2274                                    h_flex()
2275                                        .gap_1()
2276                                        .justify_end()
2277                                        .child(
2278                                            Button::new("dismiss-feedback-message", "Cancel")
2279                                                .label_size(LabelSize::Small)
2280                                                .key_binding(
2281                                                    KeyBinding::for_action_in(
2282                                                        &menu::Cancel,
2283                                                        &focus_handle,
2284                                                        window,
2285                                                        cx,
2286                                                    )
2287                                                    .map(|kb| kb.size(rems_from_px(10.))),
2288                                                )
2289                                                .on_click(cx.listener(
2290                                                    move |this, _, _window, cx| {
2291                                                        this.open_feedback_editors
2292                                                            .remove(&message_id);
2293                                                        cx.notify();
2294                                                    },
2295                                                )),
2296                                        )
2297                                        .child(
2298                                            Button::new(
2299                                                "submit-feedback-message",
2300                                                "Share Feedback",
2301                                            )
2302                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2303                                            .label_size(LabelSize::Small)
2304                                            .key_binding(
2305                                                KeyBinding::for_action_in(
2306                                                    &menu::Confirm,
2307                                                    &focus_handle,
2308                                                    window,
2309                                                    cx,
2310                                                )
2311                                                .map(|kb| kb.size(rems_from_px(10.))),
2312                                            )
2313                                            .on_click(
2314                                                cx.listener(move |this, _, _window, cx| {
2315                                                    this.submit_feedback_message(message_id, cx);
2316                                                    cx.notify()
2317                                                }),
2318                                            ),
2319                                        ),
2320                                ),
2321                        )
2322                    },
2323                )
2324            })
2325            .when(after_editing_message, |parent| {
2326                // Backdrop to dim out the whole thread below the editing user message
2327                parent.relative().child(backdrop)
2328            })
2329            .into_any()
2330    }
2331
2332    fn render_message_content(
2333        &self,
2334        message_id: MessageId,
2335        rendered_message: &RenderedMessage,
2336        has_tool_uses: bool,
2337        workspace: WeakEntity<Workspace>,
2338        window: &Window,
2339        cx: &Context<Self>,
2340    ) -> impl IntoElement {
2341        let is_last_message = self.messages.last() == Some(&message_id);
2342        let is_generating = self.thread.read(cx).is_generating();
2343        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2344            rendered_message
2345                .segments
2346                .iter()
2347                .enumerate()
2348                .next_back()
2349                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2350                .map(|(index, _)| index)
2351        } else {
2352            None
2353        };
2354
2355        let message_role = self
2356            .thread
2357            .read(cx)
2358            .message(message_id)
2359            .map(|m| m.role)
2360            .unwrap_or(Role::User);
2361
2362        let is_assistant_message = message_role == Role::Assistant;
2363        let is_user_message = message_role == Role::User;
2364
2365        v_flex()
2366            .text_ui(cx)
2367            .gap_2()
2368            .when(is_user_message, |this| this.text_xs())
2369            .children(
2370                rendered_message.segments.iter().enumerate().map(
2371                    |(index, segment)| match segment {
2372                        RenderedMessageSegment::Thinking {
2373                            content,
2374                            scroll_handle,
2375                        } => self
2376                            .render_message_thinking_segment(
2377                                message_id,
2378                                index,
2379                                content.clone(),
2380                                &scroll_handle,
2381                                Some(index) == pending_thinking_segment_index,
2382                                window,
2383                                cx,
2384                            )
2385                            .into_any_element(),
2386                        RenderedMessageSegment::Text(markdown) => {
2387                            let markdown_element = MarkdownElement::new(
2388                                markdown.clone(),
2389                                if is_user_message {
2390                                    let mut style = default_markdown_style(window, cx);
2391                                    let mut text_style = window.text_style();
2392                                    let theme_settings = ThemeSettings::get_global(cx);
2393
2394                                    let buffer_font = theme_settings.buffer_font.family.clone();
2395                                    let buffer_font_size = TextSize::Small.rems(cx);
2396
2397                                    text_style.refine(&TextStyleRefinement {
2398                                        font_family: Some(buffer_font),
2399                                        font_size: Some(buffer_font_size.into()),
2400                                        ..Default::default()
2401                                    });
2402
2403                                    style.base_text_style = text_style;
2404                                    style
2405                                } else {
2406                                    default_markdown_style(window, cx)
2407                                },
2408                            );
2409
2410                            let markdown_element = if is_assistant_message {
2411                                markdown_element.code_block_renderer(
2412                                    markdown::CodeBlockRenderer::Custom {
2413                                        render: Arc::new({
2414                                            let workspace = workspace.clone();
2415                                            let active_thread = cx.entity();
2416                                            move |kind,
2417                                                  parsed_markdown,
2418                                                  range,
2419                                                  metadata,
2420                                                  window,
2421                                                  cx| {
2422                                                render_markdown_code_block(
2423                                                    message_id,
2424                                                    range.start,
2425                                                    kind,
2426                                                    parsed_markdown,
2427                                                    metadata,
2428                                                    active_thread.clone(),
2429                                                    workspace.clone(),
2430                                                    window,
2431                                                    cx,
2432                                                )
2433                                            }
2434                                        }),
2435                                        transform: Some(Arc::new({
2436                                            let active_thread = cx.entity();
2437
2438                                            move |element, range, _, _, cx| {
2439                                                let is_expanded = active_thread
2440                                                    .read(cx)
2441                                                    .is_codeblock_expanded(message_id, range.start);
2442
2443                                                if is_expanded {
2444                                                    return element;
2445                                                }
2446
2447                                                element
2448                                            }
2449                                        })),
2450                                    },
2451                                )
2452                            } else {
2453                                markdown_element.code_block_renderer(
2454                                    markdown::CodeBlockRenderer::Default {
2455                                        copy_button: false,
2456                                        copy_button_on_hover: false,
2457                                        border: true,
2458                                    },
2459                                )
2460                            };
2461
2462                            div()
2463                                .child(markdown_element.on_url_click({
2464                                    let workspace = self.workspace.clone();
2465                                    move |text, window, cx| {
2466                                        open_markdown_link(text, workspace.clone(), window, cx);
2467                                    }
2468                                }))
2469                                .into_any_element()
2470                        }
2471                    },
2472                ),
2473            )
2474    }
2475
2476    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2477        cx.theme().colors().border.opacity(0.5)
2478    }
2479
2480    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2481        cx.theme()
2482            .colors()
2483            .element_background
2484            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2485    }
2486
2487    fn render_message_thinking_segment(
2488        &self,
2489        message_id: MessageId,
2490        ix: usize,
2491        markdown: Entity<Markdown>,
2492        scroll_handle: &ScrollHandle,
2493        pending: bool,
2494        window: &Window,
2495        cx: &Context<Self>,
2496    ) -> impl IntoElement {
2497        let is_open = self
2498            .expanded_thinking_segments
2499            .get(&(message_id, ix))
2500            .copied()
2501            .unwrap_or_default();
2502
2503        let editor_bg = cx.theme().colors().panel_background;
2504
2505        div().map(|this| {
2506            if pending {
2507                this.v_flex()
2508                    .mt_neg_2()
2509                    .mb_1p5()
2510                    .child(
2511                        h_flex()
2512                            .group("disclosure-header")
2513                            .justify_between()
2514                            .child(
2515                                h_flex()
2516                                    .gap_1p5()
2517                                    .child(
2518                                        Icon::new(IconName::LightBulb)
2519                                            .size(IconSize::XSmall)
2520                                            .color(Color::Muted),
2521                                    )
2522                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2523                            )
2524                            .child(
2525                                h_flex()
2526                                    .gap_1()
2527                                    .child(
2528                                        div().visible_on_hover("disclosure-header").child(
2529                                            Disclosure::new("thinking-disclosure", is_open)
2530                                                .opened_icon(IconName::ChevronUp)
2531                                                .closed_icon(IconName::ChevronDown)
2532                                                .on_click(cx.listener({
2533                                                    move |this, _event, _window, _cx| {
2534                                                        let is_open = this
2535                                                            .expanded_thinking_segments
2536                                                            .entry((message_id, ix))
2537                                                            .or_insert(false);
2538
2539                                                        *is_open = !*is_open;
2540                                                    }
2541                                                })),
2542                                        ),
2543                                    )
2544                                    .child({
2545                                        Icon::new(IconName::ArrowCircle)
2546                                            .color(Color::Accent)
2547                                            .size(IconSize::Small)
2548                                            .with_animation(
2549                                                "arrow-circle",
2550                                                Animation::new(Duration::from_secs(2)).repeat(),
2551                                                |icon, delta| {
2552                                                    icon.transform(Transformation::rotate(
2553                                                        percentage(delta),
2554                                                    ))
2555                                                },
2556                                            )
2557                                    }),
2558                            ),
2559                    )
2560                    .when(!is_open, |this| {
2561                        let gradient_overlay = div()
2562                            .rounded_b_lg()
2563                            .h_full()
2564                            .absolute()
2565                            .w_full()
2566                            .bottom_0()
2567                            .left_0()
2568                            .bg(linear_gradient(
2569                                180.,
2570                                linear_color_stop(editor_bg, 1.),
2571                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2572                            ));
2573
2574                        this.child(
2575                            div()
2576                                .relative()
2577                                .bg(editor_bg)
2578                                .rounded_b_lg()
2579                                .mt_2()
2580                                .pl_4()
2581                                .child(
2582                                    div()
2583                                        .id(("thinking-content", ix))
2584                                        .max_h_20()
2585                                        .track_scroll(scroll_handle)
2586                                        .text_ui_sm(cx)
2587                                        .overflow_hidden()
2588                                        .child(
2589                                            MarkdownElement::new(
2590                                                markdown.clone(),
2591                                                default_markdown_style(window, cx),
2592                                            )
2593                                            .on_url_click({
2594                                                let workspace = self.workspace.clone();
2595                                                move |text, window, cx| {
2596                                                    open_markdown_link(
2597                                                        text,
2598                                                        workspace.clone(),
2599                                                        window,
2600                                                        cx,
2601                                                    );
2602                                                }
2603                                            }),
2604                                        ),
2605                                )
2606                                .child(gradient_overlay),
2607                        )
2608                    })
2609                    .when(is_open, |this| {
2610                        this.child(
2611                            div()
2612                                .id(("thinking-content", ix))
2613                                .h_full()
2614                                .bg(editor_bg)
2615                                .text_ui_sm(cx)
2616                                .child(
2617                                    MarkdownElement::new(
2618                                        markdown.clone(),
2619                                        default_markdown_style(window, cx),
2620                                    )
2621                                    .on_url_click({
2622                                        let workspace = self.workspace.clone();
2623                                        move |text, window, cx| {
2624                                            open_markdown_link(text, workspace.clone(), window, cx);
2625                                        }
2626                                    }),
2627                                ),
2628                        )
2629                    })
2630            } else {
2631                this.v_flex()
2632                    .mt_neg_2()
2633                    .child(
2634                        h_flex()
2635                            .group("disclosure-header")
2636                            .pr_1()
2637                            .justify_between()
2638                            .opacity(0.8)
2639                            .hover(|style| style.opacity(1.))
2640                            .child(
2641                                h_flex()
2642                                    .gap_1p5()
2643                                    .child(
2644                                        Icon::new(IconName::LightBulb)
2645                                            .size(IconSize::XSmall)
2646                                            .color(Color::Muted),
2647                                    )
2648                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2649                            )
2650                            .child(
2651                                div().visible_on_hover("disclosure-header").child(
2652                                    Disclosure::new("thinking-disclosure", is_open)
2653                                        .opened_icon(IconName::ChevronUp)
2654                                        .closed_icon(IconName::ChevronDown)
2655                                        .on_click(cx.listener({
2656                                            move |this, _event, _window, _cx| {
2657                                                let is_open = this
2658                                                    .expanded_thinking_segments
2659                                                    .entry((message_id, ix))
2660                                                    .or_insert(false);
2661
2662                                                *is_open = !*is_open;
2663                                            }
2664                                        })),
2665                                ),
2666                            ),
2667                    )
2668                    .child(
2669                        div()
2670                            .id(("thinking-content", ix))
2671                            .relative()
2672                            .mt_1p5()
2673                            .ml_1p5()
2674                            .pl_2p5()
2675                            .border_l_1()
2676                            .border_color(cx.theme().colors().border_variant)
2677                            .text_ui_sm(cx)
2678                            .when(is_open, |this| {
2679                                this.child(
2680                                    MarkdownElement::new(
2681                                        markdown.clone(),
2682                                        default_markdown_style(window, cx),
2683                                    )
2684                                    .on_url_click({
2685                                        let workspace = self.workspace.clone();
2686                                        move |text, window, cx| {
2687                                            open_markdown_link(text, workspace.clone(), window, cx);
2688                                        }
2689                                    }),
2690                                )
2691                            }),
2692                    )
2693            }
2694        })
2695    }
2696
2697    fn render_tool_use(
2698        &self,
2699        tool_use: ToolUse,
2700        window: &mut Window,
2701        workspace: WeakEntity<Workspace>,
2702        cx: &mut Context<Self>,
2703    ) -> impl IntoElement + use<> {
2704        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2705            return card.render(&tool_use.status, window, workspace, cx);
2706        }
2707
2708        let is_open = self
2709            .expanded_tool_uses
2710            .get(&tool_use.id)
2711            .copied()
2712            .unwrap_or_default();
2713
2714        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2715
2716        let fs = self
2717            .workspace
2718            .upgrade()
2719            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2720        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2721        let needs_confirmation_tools = tool_use.needs_confirmation;
2722
2723        let status_icons = div().child(match &tool_use.status {
2724            ToolUseStatus::NeedsConfirmation => {
2725                let icon = Icon::new(IconName::Warning)
2726                    .color(Color::Warning)
2727                    .size(IconSize::Small);
2728                icon.into_any_element()
2729            }
2730            ToolUseStatus::Pending
2731            | ToolUseStatus::InputStillStreaming
2732            | ToolUseStatus::Running => {
2733                let icon = Icon::new(IconName::ArrowCircle)
2734                    .color(Color::Accent)
2735                    .size(IconSize::Small);
2736                icon.with_animation(
2737                    "arrow-circle",
2738                    Animation::new(Duration::from_secs(2)).repeat(),
2739                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2740                )
2741                .into_any_element()
2742            }
2743            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2744            ToolUseStatus::Error(_) => {
2745                let icon = Icon::new(IconName::Close)
2746                    .color(Color::Error)
2747                    .size(IconSize::Small);
2748                icon.into_any_element()
2749            }
2750        });
2751
2752        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2753        let results_content_container = || v_flex().p_2().gap_0p5();
2754
2755        let results_content = v_flex()
2756            .gap_1()
2757            .child(
2758                results_content_container()
2759                    .child(
2760                        Label::new("Input")
2761                            .size(LabelSize::XSmall)
2762                            .color(Color::Muted)
2763                            .buffer_font(cx),
2764                    )
2765                    .child(
2766                        div()
2767                            .w_full()
2768                            .text_ui_sm(cx)
2769                            .children(rendered_tool_use.as_ref().map(|rendered| {
2770                                MarkdownElement::new(
2771                                    rendered.input.clone(),
2772                                    tool_use_markdown_style(window, cx),
2773                                )
2774                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2775                                    copy_button: false,
2776                                    copy_button_on_hover: false,
2777                                    border: false,
2778                                })
2779                                .on_url_click({
2780                                    let workspace = self.workspace.clone();
2781                                    move |text, window, cx| {
2782                                        open_markdown_link(text, workspace.clone(), window, cx);
2783                                    }
2784                                })
2785                            })),
2786                    ),
2787            )
2788            .map(|container| match tool_use.status {
2789                ToolUseStatus::Finished(_) => container.child(
2790                    results_content_container()
2791                        .border_t_1()
2792                        .border_color(self.tool_card_border_color(cx))
2793                        .child(
2794                            Label::new("Result")
2795                                .size(LabelSize::XSmall)
2796                                .color(Color::Muted)
2797                                .buffer_font(cx),
2798                        )
2799                        .child(div().w_full().text_ui_sm(cx).children(
2800                            rendered_tool_use.as_ref().map(|rendered| {
2801                                MarkdownElement::new(
2802                                    rendered.output.clone(),
2803                                    tool_use_markdown_style(window, cx),
2804                                )
2805                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2806                                    copy_button: false,
2807                                    copy_button_on_hover: false,
2808                                    border: false,
2809                                })
2810                                .on_url_click({
2811                                    let workspace = self.workspace.clone();
2812                                    move |text, window, cx| {
2813                                        open_markdown_link(text, workspace.clone(), window, cx);
2814                                    }
2815                                })
2816                                .into_any_element()
2817                            }),
2818                        )),
2819                ),
2820                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2821                    results_content_container()
2822                        .border_t_1()
2823                        .border_color(self.tool_card_border_color(cx))
2824                        .child(
2825                            h_flex()
2826                                .gap_1()
2827                                .child(
2828                                    Icon::new(IconName::ArrowCircle)
2829                                        .size(IconSize::Small)
2830                                        .color(Color::Accent)
2831                                        .with_animation(
2832                                            "arrow-circle",
2833                                            Animation::new(Duration::from_secs(2)).repeat(),
2834                                            |icon, delta| {
2835                                                icon.transform(Transformation::rotate(percentage(
2836                                                    delta,
2837                                                )))
2838                                            },
2839                                        ),
2840                                )
2841                                .child(
2842                                    Label::new("Running…")
2843                                        .size(LabelSize::XSmall)
2844                                        .color(Color::Muted)
2845                                        .buffer_font(cx),
2846                                ),
2847                        ),
2848                ),
2849                ToolUseStatus::Error(_) => container.child(
2850                    results_content_container()
2851                        .border_t_1()
2852                        .border_color(self.tool_card_border_color(cx))
2853                        .child(
2854                            Label::new("Error")
2855                                .size(LabelSize::XSmall)
2856                                .color(Color::Muted)
2857                                .buffer_font(cx),
2858                        )
2859                        .child(
2860                            div()
2861                                .text_ui_sm(cx)
2862                                .children(rendered_tool_use.as_ref().map(|rendered| {
2863                                    MarkdownElement::new(
2864                                        rendered.output.clone(),
2865                                        tool_use_markdown_style(window, cx),
2866                                    )
2867                                    .on_url_click({
2868                                        let workspace = self.workspace.clone();
2869                                        move |text, window, cx| {
2870                                            open_markdown_link(text, workspace.clone(), window, cx);
2871                                        }
2872                                    })
2873                                    .into_any_element()
2874                                })),
2875                        ),
2876                ),
2877                ToolUseStatus::Pending => container,
2878                ToolUseStatus::NeedsConfirmation => container.child(
2879                    results_content_container()
2880                        .border_t_1()
2881                        .border_color(self.tool_card_border_color(cx))
2882                        .child(
2883                            Label::new("Asking Permission")
2884                                .size(LabelSize::Small)
2885                                .color(Color::Muted)
2886                                .buffer_font(cx),
2887                        ),
2888                ),
2889            });
2890
2891        let gradient_overlay = |color: Hsla| {
2892            div()
2893                .h_full()
2894                .absolute()
2895                .w_12()
2896                .bottom_0()
2897                .map(|element| {
2898                    if is_status_finished {
2899                        element.right_6()
2900                    } else {
2901                        element.right(px(44.))
2902                    }
2903                })
2904                .bg(linear_gradient(
2905                    90.,
2906                    linear_color_stop(color, 1.),
2907                    linear_color_stop(color.opacity(0.2), 0.),
2908                ))
2909        };
2910
2911        v_flex().gap_1().mb_2().map(|element| {
2912            if !needs_confirmation_tools {
2913                element.child(
2914                    v_flex()
2915                        .child(
2916                            h_flex()
2917                                .group("disclosure-header")
2918                                .relative()
2919                                .gap_1p5()
2920                                .justify_between()
2921                                .opacity(0.8)
2922                                .hover(|style| style.opacity(1.))
2923                                .when(!is_status_finished, |this| this.pr_2())
2924                                .child(
2925                                    h_flex()
2926                                        .id("tool-label-container")
2927                                        .gap_1p5()
2928                                        .max_w_full()
2929                                        .overflow_x_scroll()
2930                                        .child(
2931                                            Icon::new(tool_use.icon)
2932                                                .size(IconSize::XSmall)
2933                                                .color(Color::Muted),
2934                                        )
2935                                        .child(
2936                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2937                                                rendered_tool_use.map(|rendered| MarkdownElement::new(rendered.label, tool_use_markdown_style(window, cx)).on_url_click({let workspace = self.workspace.clone(); move |text, window, cx| {
2938                                                    open_markdown_link(text, workspace.clone(), window, cx);
2939                                                }}))
2940                                            ),
2941                                        ),
2942                                )
2943                                .child(
2944                                    h_flex()
2945                                        .gap_1()
2946                                        .child(
2947                                            div().visible_on_hover("disclosure-header").child(
2948                                                Disclosure::new("tool-use-disclosure", is_open)
2949                                                    .opened_icon(IconName::ChevronUp)
2950                                                    .closed_icon(IconName::ChevronDown)
2951                                                    .on_click(cx.listener({
2952                                                        let tool_use_id = tool_use.id.clone();
2953                                                        move |this, _event, _window, _cx| {
2954                                                            let is_open = this
2955                                                                .expanded_tool_uses
2956                                                                .entry(tool_use_id.clone())
2957                                                                .or_insert(false);
2958
2959                                                            *is_open = !*is_open;
2960                                                        }
2961                                                    })),
2962                                            ),
2963                                        )
2964                                        .child(status_icons),
2965                                )
2966                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2967                        )
2968                        .map(|parent| {
2969                            if !is_open {
2970                                return parent;
2971                            }
2972
2973                            parent.child(
2974                                v_flex()
2975                                    .mt_1()
2976                                    .border_1()
2977                                    .border_color(self.tool_card_border_color(cx))
2978                                    .bg(cx.theme().colors().editor_background)
2979                                    .rounded_lg()
2980                                    .child(results_content),
2981                            )
2982                        }),
2983                )
2984            } else {
2985                v_flex()
2986                    .mb_2()
2987                    .rounded_lg()
2988                    .border_1()
2989                    .border_color(self.tool_card_border_color(cx))
2990                    .overflow_hidden()
2991                    .child(
2992                        h_flex()
2993                            .group("disclosure-header")
2994                            .relative()
2995                            .justify_between()
2996                            .py_1()
2997                            .map(|element| {
2998                                if is_status_finished {
2999                                    element.pl_2().pr_0p5()
3000                                } else {
3001                                    element.px_2()
3002                                }
3003                            })
3004                            .bg(self.tool_card_header_bg(cx))
3005                            .map(|element| {
3006                                if is_open {
3007                                    element.border_b_1().rounded_t_md()
3008                                } else if needs_confirmation {
3009                                    element.rounded_t_md()
3010                                } else {
3011                                    element.rounded_md()
3012                                }
3013                            })
3014                            .border_color(self.tool_card_border_color(cx))
3015                            .child(
3016                                h_flex()
3017                                    .id("tool-label-container")
3018                                    .gap_1p5()
3019                                    .max_w_full()
3020                                    .overflow_x_scroll()
3021                                    .child(
3022                                        Icon::new(tool_use.icon)
3023                                            .size(IconSize::XSmall)
3024                                            .color(Color::Muted),
3025                                    )
3026                                    .child(
3027                                        h_flex().pr_8().text_ui_sm(cx).children(
3028                                            rendered_tool_use.map(|rendered| MarkdownElement::new(rendered.label, tool_use_markdown_style(window, cx)).on_url_click({let workspace = self.workspace.clone(); move |text, window, cx| {
3029                                                open_markdown_link(text, workspace.clone(), window, cx);
3030                                            }}))
3031                                        ),
3032                                    ),
3033                            )
3034                            .child(
3035                                h_flex()
3036                                    .gap_1()
3037                                    .child(
3038                                        div().visible_on_hover("disclosure-header").child(
3039                                            Disclosure::new("tool-use-disclosure", is_open)
3040                                                .opened_icon(IconName::ChevronUp)
3041                                                .closed_icon(IconName::ChevronDown)
3042                                                .on_click(cx.listener({
3043                                                    let tool_use_id = tool_use.id.clone();
3044                                                    move |this, _event, _window, _cx| {
3045                                                        let is_open = this
3046                                                            .expanded_tool_uses
3047                                                            .entry(tool_use_id.clone())
3048                                                            .or_insert(false);
3049
3050                                                        *is_open = !*is_open;
3051                                                    }
3052                                                })),
3053                                        ),
3054                                    )
3055                                    .child(status_icons),
3056                            )
3057                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3058                    )
3059                    .map(|parent| {
3060                        if !is_open {
3061                            return parent;
3062                        }
3063
3064                        parent.child(
3065                            v_flex()
3066                                .bg(cx.theme().colors().editor_background)
3067                                .map(|element| {
3068                                    if  needs_confirmation {
3069                                        element.rounded_none()
3070                                    } else {
3071                                        element.rounded_b_lg()
3072                                    }
3073                                })
3074                                .child(results_content),
3075                        )
3076                    })
3077                    .when(needs_confirmation, |this| {
3078                        this.child(
3079                            h_flex()
3080                                .py_1()
3081                                .pl_2()
3082                                .pr_1()
3083                                .gap_1()
3084                                .justify_between()
3085                                .bg(cx.theme().colors().editor_background)
3086                                .border_t_1()
3087                                .border_color(self.tool_card_border_color(cx))
3088                                .rounded_b_lg()
3089                                .child(
3090                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3091                                )
3092                                .child(
3093                                    h_flex()
3094                                        .gap_0p5()
3095                                        .child({
3096                                            let tool_id = tool_use.id.clone();
3097                                            Button::new(
3098                                                "always-allow-tool-action",
3099                                                "Always Allow",
3100                                            )
3101                                            .label_size(LabelSize::Small)
3102                                            .icon(IconName::CheckDouble)
3103                                            .icon_position(IconPosition::Start)
3104                                            .icon_size(IconSize::Small)
3105                                            .icon_color(Color::Success)
3106                                            .tooltip(move |window, cx|  {
3107                                                Tooltip::with_meta(
3108                                                    "Never ask for permission",
3109                                                    None,
3110                                                    "Restore the original behavior in your Agent Panel settings",
3111                                                    window,
3112                                                    cx,
3113                                                )
3114                                            })
3115                                            .on_click(cx.listener(
3116                                                move |this, event, window, cx| {
3117                                                    if let Some(fs) = fs.clone() {
3118                                                        update_settings_file::<AgentSettings>(
3119                                                            fs.clone(),
3120                                                            cx,
3121                                                            |settings, _| {
3122                                                                settings.set_always_allow_tool_actions(true);
3123                                                            },
3124                                                        );
3125                                                    }
3126                                                    this.handle_allow_tool(
3127                                                        tool_id.clone(),
3128                                                        event,
3129                                                        window,
3130                                                        cx,
3131                                                    )
3132                                                },
3133                                            ))
3134                                        })
3135                                        .child(ui::Divider::vertical())
3136                                        .child({
3137                                            let tool_id = tool_use.id.clone();
3138                                            Button::new("allow-tool-action", "Allow")
3139                                                .label_size(LabelSize::Small)
3140                                                .icon(IconName::Check)
3141                                                .icon_position(IconPosition::Start)
3142                                                .icon_size(IconSize::Small)
3143                                                .icon_color(Color::Success)
3144                                                .on_click(cx.listener(
3145                                                    move |this, event, window, cx| {
3146                                                        this.handle_allow_tool(
3147                                                            tool_id.clone(),
3148                                                            event,
3149                                                            window,
3150                                                            cx,
3151                                                        )
3152                                                    },
3153                                                ))
3154                                        })
3155                                        .child({
3156                                            let tool_id = tool_use.id.clone();
3157                                            let tool_name: Arc<str> = tool_use.name.into();
3158                                            Button::new("deny-tool", "Deny")
3159                                                .label_size(LabelSize::Small)
3160                                                .icon(IconName::Close)
3161                                                .icon_position(IconPosition::Start)
3162                                                .icon_size(IconSize::Small)
3163                                                .icon_color(Color::Error)
3164                                                .on_click(cx.listener(
3165                                                    move |this, event, window, cx| {
3166                                                        this.handle_deny_tool(
3167                                                            tool_id.clone(),
3168                                                            tool_name.clone(),
3169                                                            event,
3170                                                            window,
3171                                                            cx,
3172                                                        )
3173                                                    },
3174                                                ))
3175                                        }),
3176                                ),
3177                        )
3178                    })
3179            }
3180        }).into_any_element()
3181    }
3182
3183    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3184        let project_context = self.thread.read(cx).project_context();
3185        let project_context = project_context.borrow();
3186        let Some(project_context) = project_context.as_ref() else {
3187            return div().into_any();
3188        };
3189
3190        let user_rules_text = if project_context.user_rules.is_empty() {
3191            None
3192        } else if project_context.user_rules.len() == 1 {
3193            let user_rules = &project_context.user_rules[0];
3194
3195            match user_rules.title.as_ref() {
3196                Some(title) => Some(format!("Using \"{title}\" user rule")),
3197                None => Some("Using user rule".into()),
3198            }
3199        } else {
3200            Some(format!(
3201                "Using {} user rules",
3202                project_context.user_rules.len()
3203            ))
3204        };
3205
3206        let first_user_rules_id = project_context
3207            .user_rules
3208            .first()
3209            .map(|user_rules| user_rules.uuid.0);
3210
3211        let rules_files = project_context
3212            .worktrees
3213            .iter()
3214            .filter_map(|worktree| worktree.rules_file.as_ref())
3215            .collect::<Vec<_>>();
3216
3217        let rules_file_text = match rules_files.as_slice() {
3218            &[] => None,
3219            &[rules_file] => Some(format!(
3220                "Using project {:?} file",
3221                rules_file.path_in_worktree
3222            )),
3223            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3224        };
3225
3226        if user_rules_text.is_none() && rules_file_text.is_none() {
3227            return div().into_any();
3228        }
3229
3230        v_flex()
3231            .pt_2()
3232            .px_2p5()
3233            .gap_1()
3234            .when_some(user_rules_text, |parent, user_rules_text| {
3235                parent.child(
3236                    h_flex()
3237                        .w_full()
3238                        .child(
3239                            Icon::new(RULES_ICON)
3240                                .size(IconSize::XSmall)
3241                                .color(Color::Disabled),
3242                        )
3243                        .child(
3244                            Label::new(user_rules_text)
3245                                .size(LabelSize::XSmall)
3246                                .color(Color::Muted)
3247                                .truncate()
3248                                .buffer_font(cx)
3249                                .ml_1p5()
3250                                .mr_0p5(),
3251                        )
3252                        .child(
3253                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3254                                .shape(ui::IconButtonShape::Square)
3255                                .icon_size(IconSize::XSmall)
3256                                .icon_color(Color::Ignored)
3257                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3258                                .tooltip(Tooltip::text("View User Rules"))
3259                                .on_click(move |_event, window, cx| {
3260                                    window.dispatch_action(
3261                                        Box::new(OpenRulesLibrary {
3262                                            prompt_to_select: first_user_rules_id,
3263                                        }),
3264                                        cx,
3265                                    )
3266                                }),
3267                        ),
3268                )
3269            })
3270            .when_some(rules_file_text, |parent, rules_file_text| {
3271                parent.child(
3272                    h_flex()
3273                        .w_full()
3274                        .child(
3275                            Icon::new(IconName::File)
3276                                .size(IconSize::XSmall)
3277                                .color(Color::Disabled),
3278                        )
3279                        .child(
3280                            Label::new(rules_file_text)
3281                                .size(LabelSize::XSmall)
3282                                .color(Color::Muted)
3283                                .buffer_font(cx)
3284                                .ml_1p5()
3285                                .mr_0p5(),
3286                        )
3287                        .child(
3288                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3289                                .shape(ui::IconButtonShape::Square)
3290                                .icon_size(IconSize::XSmall)
3291                                .icon_color(Color::Ignored)
3292                                .on_click(cx.listener(Self::handle_open_rules))
3293                                .tooltip(Tooltip::text("View Rules")),
3294                        ),
3295                )
3296            })
3297            .into_any()
3298    }
3299
3300    fn handle_allow_tool(
3301        &mut self,
3302        tool_use_id: LanguageModelToolUseId,
3303        _: &ClickEvent,
3304        window: &mut Window,
3305        cx: &mut Context<Self>,
3306    ) {
3307        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3308            .thread
3309            .read(cx)
3310            .pending_tool(&tool_use_id)
3311            .map(|tool_use| tool_use.status.clone())
3312        {
3313            self.thread.update(cx, |thread, cx| {
3314                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3315                    thread.run_tool(
3316                        c.tool_use_id.clone(),
3317                        c.ui_text.clone(),
3318                        c.input.clone(),
3319                        c.request.clone(),
3320                        c.tool.clone(),
3321                        configured.model,
3322                        Some(window.window_handle()),
3323                        cx,
3324                    );
3325                }
3326            });
3327        }
3328    }
3329
3330    fn handle_deny_tool(
3331        &mut self,
3332        tool_use_id: LanguageModelToolUseId,
3333        tool_name: Arc<str>,
3334        _: &ClickEvent,
3335        window: &mut Window,
3336        cx: &mut Context<Self>,
3337    ) {
3338        let window_handle = window.window_handle();
3339        self.thread.update(cx, |thread, cx| {
3340            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3341        });
3342    }
3343
3344    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3345        let project_context = self.thread.read(cx).project_context();
3346        let project_context = project_context.borrow();
3347        let Some(project_context) = project_context.as_ref() else {
3348            return;
3349        };
3350
3351        let project_entry_ids = project_context
3352            .worktrees
3353            .iter()
3354            .flat_map(|worktree| worktree.rules_file.as_ref())
3355            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3356            .collect::<Vec<_>>();
3357
3358        self.workspace
3359            .update(cx, move |workspace, cx| {
3360                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3361                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3362                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3363                let project = workspace.project().read(cx);
3364                let project_paths = project_entry_ids
3365                    .into_iter()
3366                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3367                    .collect::<Vec<_>>();
3368                for project_path in project_paths {
3369                    workspace
3370                        .open_path(project_path, None, true, window, cx)
3371                        .detach_and_log_err(cx);
3372                }
3373            })
3374            .ok();
3375    }
3376
3377    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3378        for window in self.notifications.drain(..) {
3379            window
3380                .update(cx, |_, window, _| {
3381                    window.remove_window();
3382                })
3383                .ok();
3384
3385            self.notification_subscriptions.remove(&window);
3386        }
3387    }
3388
3389    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3390        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3391            return None;
3392        }
3393
3394        Some(
3395            div()
3396                .occlude()
3397                .id("active-thread-scrollbar")
3398                .on_mouse_move(cx.listener(|_, _, _, cx| {
3399                    cx.notify();
3400                    cx.stop_propagation()
3401                }))
3402                .on_hover(|_, _, cx| {
3403                    cx.stop_propagation();
3404                })
3405                .on_any_mouse_down(|_, _, cx| {
3406                    cx.stop_propagation();
3407                })
3408                .on_mouse_up(
3409                    MouseButton::Left,
3410                    cx.listener(|_, _, _, cx| {
3411                        cx.stop_propagation();
3412                    }),
3413                )
3414                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3415                    cx.notify();
3416                }))
3417                .h_full()
3418                .absolute()
3419                .right_1()
3420                .top_1()
3421                .bottom_0()
3422                .w(px(12.))
3423                .cursor_default()
3424                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3425        )
3426    }
3427
3428    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3429        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3430        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3431            cx.background_executor()
3432                .timer(SCROLLBAR_SHOW_INTERVAL)
3433                .await;
3434            thread
3435                .update(cx, |thread, cx| {
3436                    if !thread.scrollbar_state.is_dragging() {
3437                        thread.show_scrollbar = false;
3438                        cx.notify();
3439                    }
3440                })
3441                .log_err();
3442        }))
3443    }
3444
3445    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3446        self.expanded_code_blocks
3447            .get(&(message_id, ix))
3448            .copied()
3449            .unwrap_or(true)
3450    }
3451
3452    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3453        let is_expanded = self
3454            .expanded_code_blocks
3455            .entry((message_id, ix))
3456            .or_insert(true);
3457        *is_expanded = !*is_expanded;
3458    }
3459
3460    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3461        self.list_state.reset(self.messages.len());
3462        cx.notify();
3463    }
3464}
3465
3466pub enum ActiveThreadEvent {
3467    EditingMessageTokenCountChanged,
3468}
3469
3470impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3471
3472impl Render for ActiveThread {
3473    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3474        v_flex()
3475            .size_full()
3476            .relative()
3477            .bg(cx.theme().colors().panel_background)
3478            .on_mouse_move(cx.listener(|this, _, _, cx| {
3479                this.show_scrollbar = true;
3480                this.hide_scrollbar_later(cx);
3481                cx.notify();
3482            }))
3483            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3484                this.show_scrollbar = true;
3485                this.hide_scrollbar_later(cx);
3486                cx.notify();
3487            }))
3488            .on_mouse_up(
3489                MouseButton::Left,
3490                cx.listener(|this, _, _, cx| {
3491                    this.hide_scrollbar_later(cx);
3492                }),
3493            )
3494            .child(list(self.list_state.clone()).flex_grow())
3495            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3496                this.child(scrollbar)
3497            })
3498    }
3499}
3500
3501pub(crate) fn open_active_thread_as_markdown(
3502    thread: Entity<Thread>,
3503    workspace: Entity<Workspace>,
3504    window: &mut Window,
3505    cx: &mut App,
3506) -> Task<anyhow::Result<()>> {
3507    let markdown_language_task = workspace
3508        .read(cx)
3509        .app_state()
3510        .languages
3511        .language_for_name("Markdown");
3512
3513    window.spawn(cx, async move |cx| {
3514        let markdown_language = markdown_language_task.await?;
3515
3516        workspace.update_in(cx, |workspace, window, cx| {
3517            let thread = thread.read(cx);
3518            let markdown = thread.to_markdown(cx)?;
3519            let thread_summary = thread.summary().or_default().to_string();
3520
3521            let project = workspace.project().clone();
3522
3523            if !project.read(cx).is_local() {
3524                anyhow::bail!("failed to open active thread as markdown in remote project");
3525            }
3526
3527            let buffer = project.update(cx, |project, cx| {
3528                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3529            });
3530            let buffer =
3531                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3532
3533            workspace.add_item_to_active_pane(
3534                Box::new(cx.new(|cx| {
3535                    let mut editor =
3536                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3537                    editor.set_breadcrumb_header(thread_summary);
3538                    editor
3539                })),
3540                None,
3541                true,
3542                window,
3543                cx,
3544            );
3545
3546            anyhow::Ok(())
3547        })??;
3548        anyhow::Ok(())
3549    })
3550}
3551
3552pub(crate) fn open_context(
3553    context: &AgentContextHandle,
3554    workspace: Entity<Workspace>,
3555    window: &mut Window,
3556    cx: &mut App,
3557) {
3558    match context {
3559        AgentContextHandle::File(file_context) => {
3560            if let Some(project_path) = file_context.project_path(cx) {
3561                workspace.update(cx, |workspace, cx| {
3562                    workspace
3563                        .open_path(project_path, None, true, window, cx)
3564                        .detach_and_log_err(cx);
3565                });
3566            }
3567        }
3568
3569        AgentContextHandle::Directory(directory_context) => {
3570            let entry_id = directory_context.entry_id;
3571            workspace.update(cx, |workspace, cx| {
3572                workspace.project().update(cx, |_project, cx| {
3573                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3574                })
3575            })
3576        }
3577
3578        AgentContextHandle::Symbol(symbol_context) => {
3579            let buffer = symbol_context.buffer.read(cx);
3580            if let Some(project_path) = buffer.project_path(cx) {
3581                let snapshot = buffer.snapshot();
3582                let target_position = symbol_context.range.start.to_point(&snapshot);
3583                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3584                    .detach();
3585            }
3586        }
3587
3588        AgentContextHandle::Selection(selection_context) => {
3589            let buffer = selection_context.buffer.read(cx);
3590            if let Some(project_path) = buffer.project_path(cx) {
3591                let snapshot = buffer.snapshot();
3592                let target_position = selection_context.range.start.to_point(&snapshot);
3593
3594                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3595                    .detach();
3596            }
3597        }
3598
3599        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3600            cx.open_url(&fetched_url_context.url);
3601        }
3602
3603        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3604            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3605                panel.update(cx, |panel, cx| {
3606                    panel.open_thread(thread_context.thread.clone(), window, cx);
3607                });
3608            }
3609        }),
3610
3611        AgentContextHandle::TextThread(text_thread_context) => {
3612            workspace.update(cx, |workspace, cx| {
3613                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3614                    panel.update(cx, |panel, cx| {
3615                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3616                    });
3617                }
3618            })
3619        }
3620
3621        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3622            Box::new(OpenRulesLibrary {
3623                prompt_to_select: Some(rules_context.prompt_id.0),
3624            }),
3625            cx,
3626        ),
3627
3628        AgentContextHandle::Image(_) => {}
3629    }
3630}
3631
3632pub(crate) fn attach_pasted_images_as_context(
3633    context_store: &Entity<ContextStore>,
3634    cx: &mut App,
3635) -> bool {
3636    let images = cx
3637        .read_from_clipboard()
3638        .map(|item| {
3639            item.into_entries()
3640                .filter_map(|entry| {
3641                    if let ClipboardEntry::Image(image) = entry {
3642                        Some(image)
3643                    } else {
3644                        None
3645                    }
3646                })
3647                .collect::<Vec<_>>()
3648        })
3649        .unwrap_or_default();
3650
3651    if images.is_empty() {
3652        return false;
3653    }
3654    cx.stop_propagation();
3655
3656    context_store.update(cx, |store, cx| {
3657        for image in images {
3658            store.add_image_instance(Arc::new(image), cx);
3659        }
3660    });
3661    true
3662}
3663
3664fn open_editor_at_position(
3665    project_path: project::ProjectPath,
3666    target_position: Point,
3667    workspace: &Entity<Workspace>,
3668    window: &mut Window,
3669    cx: &mut App,
3670) -> Task<()> {
3671    let open_task = workspace.update(cx, |workspace, cx| {
3672        workspace.open_path(project_path, None, true, window, cx)
3673    });
3674    window.spawn(cx, async move |cx| {
3675        if let Some(active_editor) = open_task
3676            .await
3677            .log_err()
3678            .and_then(|item| item.downcast::<Editor>())
3679        {
3680            active_editor
3681                .downgrade()
3682                .update_in(cx, |editor, window, cx| {
3683                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3684                })
3685                .log_err();
3686        }
3687    })
3688}
3689
3690#[cfg(test)]
3691mod tests {
3692    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3693    use editor::{EditorSettings, display_map::CreaseMetadata};
3694    use fs::FakeFs;
3695    use gpui::{AppContext, TestAppContext, VisualTestContext};
3696    use language_model::{
3697        ConfiguredModel, LanguageModel, LanguageModelRegistry,
3698        fake_provider::{FakeLanguageModel, FakeLanguageModelProvider},
3699    };
3700    use project::Project;
3701    use prompt_store::PromptBuilder;
3702    use serde_json::json;
3703    use settings::SettingsStore;
3704    use util::path;
3705    use workspace::CollaboratorId;
3706
3707    use crate::{ContextLoadResult, thread_store};
3708
3709    use super::*;
3710
3711    #[gpui::test]
3712    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3713        init_test_settings(cx);
3714
3715        let project = create_test_project(
3716            cx,
3717            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3718        )
3719        .await;
3720
3721        let (cx, _active_thread, workspace, thread, model) =
3722            setup_test_environment(cx, project.clone()).await;
3723
3724        // Insert user message without any context (empty context vector)
3725        thread.update(cx, |thread, cx| {
3726            thread.insert_user_message(
3727                "What is the best way to learn Rust?",
3728                ContextLoadResult::default(),
3729                None,
3730                vec![],
3731                cx,
3732            );
3733        });
3734
3735        // Stream response to user message
3736        thread.update(cx, |thread, cx| {
3737            let request =
3738                thread.to_completion_request(model.clone(), CompletionIntent::UserPrompt, cx);
3739            thread.stream_completion(request, model, cx.active_window(), cx)
3740        });
3741        // Follow the agent
3742        cx.update(|window, cx| {
3743            workspace.update(cx, |workspace, cx| {
3744                workspace.follow(CollaboratorId::Agent, window, cx);
3745            })
3746        });
3747        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3748
3749        // Cancel the current completion
3750        thread.update(cx, |thread, cx| {
3751            thread.cancel_last_completion(cx.active_window(), cx)
3752        });
3753
3754        cx.executor().run_until_parked();
3755
3756        // No longer following the agent
3757        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3758    }
3759
3760    #[gpui::test]
3761    async fn test_reinserting_creases_for_edited_message(cx: &mut TestAppContext) {
3762        init_test_settings(cx);
3763
3764        let project = create_test_project(cx, json!({})).await;
3765
3766        let (cx, active_thread, _, thread, model) =
3767            setup_test_environment(cx, project.clone()).await;
3768        cx.update(|_, cx| {
3769            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3770                registry.set_default_model(
3771                    Some(ConfiguredModel {
3772                        provider: Arc::new(FakeLanguageModelProvider),
3773                        model,
3774                    }),
3775                    cx,
3776                );
3777            });
3778        });
3779
3780        let creases = vec![MessageCrease {
3781            range: 14..22,
3782            metadata: CreaseMetadata {
3783                icon_path: "icon".into(),
3784                label: "foo.txt".into(),
3785            },
3786            context: None,
3787        }];
3788
3789        let message = thread.update(cx, |thread, cx| {
3790            let message_id = thread.insert_user_message(
3791                "Tell me about @foo.txt",
3792                ContextLoadResult::default(),
3793                None,
3794                creases,
3795                cx,
3796            );
3797            thread.message(message_id).cloned().unwrap()
3798        });
3799
3800        active_thread.update_in(cx, |active_thread, window, cx| {
3801            active_thread.start_editing_message(
3802                message.id,
3803                message.segments.as_slice(),
3804                message.creases.as_slice(),
3805                window,
3806                cx,
3807            );
3808            let editor = active_thread
3809                .editing_message
3810                .as_ref()
3811                .unwrap()
3812                .1
3813                .editor
3814                .clone();
3815            editor.update(cx, |editor, cx| editor.edit([(0..13, "modified")], cx));
3816            active_thread.confirm_editing_message(&Default::default(), window, cx);
3817        });
3818        cx.run_until_parked();
3819
3820        let message = thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
3821        active_thread.update_in(cx, |active_thread, window, cx| {
3822            active_thread.start_editing_message(
3823                message.id,
3824                message.segments.as_slice(),
3825                message.creases.as_slice(),
3826                window,
3827                cx,
3828            );
3829            let editor = active_thread
3830                .editing_message
3831                .as_ref()
3832                .unwrap()
3833                .1
3834                .editor
3835                .clone();
3836            let text = editor.update(cx, |editor, cx| editor.text(cx));
3837            assert_eq!(text, "modified @foo.txt");
3838        });
3839    }
3840
3841    fn init_test_settings(cx: &mut TestAppContext) {
3842        cx.update(|cx| {
3843            let settings_store = SettingsStore::test(cx);
3844            cx.set_global(settings_store);
3845            language::init(cx);
3846            Project::init_settings(cx);
3847            AgentSettings::register(cx);
3848            prompt_store::init(cx);
3849            thread_store::init(cx);
3850            workspace::init_settings(cx);
3851            language_model::init_settings(cx);
3852            ThemeSettings::register(cx);
3853            EditorSettings::register(cx);
3854            ToolRegistry::default_global(cx);
3855        });
3856    }
3857
3858    // Helper to create a test project with test files
3859    async fn create_test_project(
3860        cx: &mut TestAppContext,
3861        files: serde_json::Value,
3862    ) -> Entity<Project> {
3863        let fs = FakeFs::new(cx.executor());
3864        fs.insert_tree(path!("/test"), files).await;
3865        Project::test(fs, [path!("/test").as_ref()], cx).await
3866    }
3867
3868    async fn setup_test_environment(
3869        cx: &mut TestAppContext,
3870        project: Entity<Project>,
3871    ) -> (
3872        &mut VisualTestContext,
3873        Entity<ActiveThread>,
3874        Entity<Workspace>,
3875        Entity<Thread>,
3876        Arc<dyn LanguageModel>,
3877    ) {
3878        let (workspace, cx) =
3879            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
3880
3881        let thread_store = cx
3882            .update(|_, cx| {
3883                ThreadStore::load(
3884                    project.clone(),
3885                    cx.new(|_| ToolWorkingSet::default()),
3886                    None,
3887                    Arc::new(PromptBuilder::new(None).unwrap()),
3888                    cx,
3889                )
3890            })
3891            .await
3892            .unwrap();
3893
3894        let text_thread_store = cx
3895            .update(|_, cx| {
3896                TextThreadStore::new(
3897                    project.clone(),
3898                    Arc::new(PromptBuilder::new(None).unwrap()),
3899                    Default::default(),
3900                    cx,
3901                )
3902            })
3903            .await
3904            .unwrap();
3905
3906        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
3907        let context_store =
3908            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
3909
3910        let model = FakeLanguageModel::default();
3911        let model: Arc<dyn LanguageModel> = Arc::new(model);
3912
3913        let language_registry = LanguageRegistry::new(cx.executor());
3914        let language_registry = Arc::new(language_registry);
3915
3916        let active_thread = cx.update(|window, cx| {
3917            cx.new(|cx| {
3918                ActiveThread::new(
3919                    thread.clone(),
3920                    thread_store.clone(),
3921                    text_thread_store,
3922                    context_store.clone(),
3923                    language_registry.clone(),
3924                    workspace.downgrade(),
3925                    window,
3926                    cx,
3927                )
3928            })
3929        });
3930
3931        (cx, active_thread, workspace, thread, model)
3932    }
3933}